Gaya APA

ASTM, . (1997). ASTM C 918 - 97 Standard test method for measuring early age compressive strength and projecting later age strength . : ASTM.

Gaya MLA

ASTM, . "ASTM C 918 - 97 Standard test method for measuring early age compressive strength and projecting later age strength". : ASTM, 1997. Diorama.