TY  - BOOK
AU  - Balmer, G. G.
AU  - Colley, B. E., coaut.
TI  - Laboratory studies of the skid resistance of concrete / by -G. G. Balmer and B. E. Colley
CY  - Skokie, Illinois : atories, Development Department
N1  - "Authorized reprint from copyrighted Journal of Materials, - Vol. 1, No. 3, 536-559 (September 1966) American Society o-f Testing and Materials"
ER  -