Gaya APA
Kirk, R, E., Donald, F, O. (1951).
Encyclopedia of chemical technology [Vol.6] (vol.6).
New York:
The Interscience Encyclopedia, Inc.
Gaya MLA
Kirk, Raymond, E., Donald, F., Othmer,.
"Encyclopedia of chemical technology [Vol.6]".
vol.6
New York:
The Interscience Encyclopedia, Inc,
1951.
Text.