Gaya APA
Indonesia(APMI), A, P, M, D, G, B. (1991).
Latest Development in Drilling Fluids Technology .
Jakarta:
APMI, s.l.
Gaya MLA
Indonesia(APMI), Asosiasi, Pemboran, Minyak, Dan, Gas, Bumi.
"Latest Development in Drilling Fluids Technology".
Jakarta:
APMI, s.l,
1991.
Text.