Gaya APA
ASSOCIATION, I, P. (1978).
Proceedings of the seventh annual convention Jakarta June 6 - 7 - 1978 .
:
IPA.
Gaya MLA
ASSOCIATION, INDONESIAN, PETROLEUM.
"Proceedings of the seventh annual convention Jakarta June 6 - 7 - 1978".
:
IPA,
1978.
Buku.