Erlin, Bernard.
Methods used in petrographic studies of concrete / by Berna-rd Erlin.
- Skokie, Illinois : atories
- 16 p.
- Bulletin 193 / Portland Cement Association .
"Authorized reprint from copyrighted Analytical Techniques - for Hydraulic Cement and Concrete STP No. 395, 3-17 (1966)- published by American Society for Testing and Materials".