Gaya APA

ASTM., . (1991). 1991 Annual Bopok Of ASTM Standards : Petroleum product and lubricant volume 05 01. annual book of astm standards 1991. Petroleum products, lubricants, and fossil fuels. (1991). : Philadelphia : ASTM.,.

Gaya MLA

ASTM., . "1991 Annual Bopok Of ASTM Standards : Petroleum product and lubricant volume 05 01. annual book of astm standards 1991. Petroleum products, lubricants, and fossil fuels.". 1991 : Philadelphia : ASTM.,, 1991. Text.