Gaya APA

Chilingarian, G., Vorabutr, P. (1981). Drilling and drilling fluids (1981). : Amsterdam :Elsevier Scientific Publishing Co.,.

Gaya MLA

Chilingarian, G.V.., Vorabutr, P.. "Drilling and drilling fluids". 1981 : Amsterdam :Elsevier Scientific Publishing Co.,, 1981. Text.