Grading of paving asphalts by viscosity at 140 F versus penetration at 77 F a symposium.

MLA

ASTM Committee D-4 on Road and Paving Materials. Grading of paving asphalts by viscosity at 140 F versus penetration at 77 F a symposium. Philadelphia : American Society for Testing and Materials, [1967]

APA

ASTM Committee D-4 on Road and Paving Materials. (1967). Grading of paving asphalts by viscosity at 140 F versus penetration at 77 F a symposium. Philadelphia : American Society for Testing and Materials.

Chicago

ASTM Committee D-4 on Road and Paving Materials. Grading of paving asphalts by viscosity at 140 F versus penetration at 77 F a symposium. Philadelphia : American Society for Testing and Materials, [1967]