Gaya APA

ASTM, . (1991). 1991 Annual Book Of ASTM Standards : Petroleum product and lubricant. Volume 05 02. Annual book of ASTM standards 1991. Petroleum products, lubricants, and fossil fuels. (1991). : Philadelphia : ASTM.,.

Gaya MLA

ASTM, . "1991 Annual Book Of ASTM Standards : Petroleum product and lubricant. Volume 05 02. Annual book of ASTM standards 1991. Petroleum products, lubricants, and fossil fuels.". 1991 : Philadelphia : ASTM.,, 1991. Text.