| Reference |
|---|
| 1 | A Review of Paver Production on Besser Block Machines, Lucas E. Pfeiffenberger, pp. 33-37, (1984) (2 parts). |
| 2 | Anchof Autoclave Product Literature 1990.Aztech Wall System Installation Guide, Block Systems, Inc., (1989). |
| 3 | Besser Accessories Catalog (1984). |
| 4 | Besser, Concrete Paving Stones, Manual No. 8601—Section 5, Besser Company, pp. 1-24 (undated). |
| 5 | Besser, Parts and Equipment, Besser Company, pp. 1-80 (before 1990). |
| 6 | Besser, Technical Data for the Blockmaker, Besser Research and Training Center, pp. 33 and 34 (1962). |
| 7 | Bulletin 7062, Jul. 1, 1994. |
| 8 | Columbia Machine Mold Descriptions (date unknown). |
| 9 | Creative Alternatives, BLOCK Systems Incorporated, Concrete Ideas (1989). |
| 10 | Diamond Block Test Report to University of Wisconsin, Platteville (1990). |
| 11 | Diamond Wall System Installation Guide, DIAMOND Wall System, Block Systems, Inc. (1989). |
| 12 | Diamond Wall Systems: The Cutting Edge, Anchor Block Co. (date unknown). |
| 13 | EZ Wall Systems Product Literature, Rockwood Retaining Wall Systems, Inc. (date unknown). |
| 14 | Garden Wall Product Literature (1991). |
| 15 | Handy-Stone Retaining Wall System Product Literature (date unknown). |
| 16 | Installation & Design Manual, ROCKWOOD Classic, The one-piece easy to use system, Rockwood Retaining Walls, Inc. (undated). |
| 17 | Johnson Block Product Literature (date unknown). |
| 18 | Kawano Cement Brochure (date unknown). |
| 19 | Keystone International Compac Unit Product Literature (1992). |
| 20 | Keystone Retaining Wall Systems Product Literature (1992). |
| 21 | Krehling Industries article, Florida block and r/m plant relies on admixtures (undated). |
| 22 | Modular Concrete Block, the Besser Co. (date unknown). |
| 23 | Orco Block Co., Split Face Block Product Literature (date unknown). |
| 24 | Paving Stone: New Lock With Old World Charm, the Besser Co. (date unknown). |
| 25 | PCT International Search Report (International Appl. No. PCT/US93/09559) (5 pages). Mar. 21, 1994. |
| 26 | PISA II, Interlocking Retaining Wall System, Interlock Paving Company, (1988). |
| 27 | Profile HEX Masonry Units literature. |
| 28 | Single-element retaining wall system is ideal for block producers, Robert L. Hubler, Jr., Sep., 1983. |
| 29 | Sweet's Engineering & Retrofit Cat.; Sec 02276/AND; p. 1 and 2; Diamond Beveled Block, 1994. |
| 30 | Various Diamond Wall System 4 and 4.4 Concrete Masonry Units Tech Spec's, Anchor Block (1988, 1989). |
| 31 | Versa Lock Product Literature (date unknown). |
| 32 | Windsor Stone Product Literature, Block Systems, Inc. (1991). |