Gaya APA

ASTM, . (1997). ASTM D 946-82. Standard specification of penetration-graded asphalt cement for use in pavement construction . : ASTM.

Gaya MLA

ASTM, . "ASTM D 946-82. Standard specification of penetration-graded asphalt cement for use in pavement construction". : ASTM, 1997. Diorama.