Gaya APA

ASTM, . (1997). ASTM D 2172 Standard test methods for quantitative extraction of bitumen from bituminous paving mixtures . : ASTM.

Gaya MLA

ASTM, . "ASTM D 2172 Standard test methods for quantitative extraction of bitumen from bituminous paving mixtures". : ASTM, 1997. Diorama.