Gaya APA
Publishers., A, S. (1975).
Ninth world petroleum congress. procedings volume 5 processing and storage. (1975).
:
London : Applied Science Publishers Ltd.,.
Gaya MLA
Publishers., Applied, Science.
"Ninth world petroleum congress. procedings volume 5 processing and storage.".
1975
:
London : Applied Science Publishers Ltd.,,
1975.
Text.