Gaya APA
Parker, S, P. (1984).
Grolier Concise Encyclopedia of Science and Technology : Volume VI T- Z .
Hong Kong:
Grolier Internasional.
Gaya MLA
Parker, Sybil, P..
"Grolier Concise Encyclopedia of Science and Technology : Volume VI T- Z".
Hong Kong:
Grolier Internasional,
1984.
Text.