TY  - BOOK
AU  - Erlin, Bernard.
TI  - Methods used in petrographic studies of concrete / by Berna-rd Erlin
CY  - Skokie, Illinois : atories
N1  - "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"
ER  -