Gaya APA

Chilingar, G, V., Beeson, C, M. (1969). Surface operations in petroleum production. (1969). : New York : American Elsevier Publishing Co.,.

Gaya MLA

Chilingar, George, V.., Beeson, Carrol, M.. "Surface operations in petroleum production.". 1969 : New York : American Elsevier Publishing Co.,, 1969. Text.