Gaya APA
Kirk, R, E., Donald, F, O. (1949).
Encyclopedia of chemical technology [Vol.3] (vol.3).
New York:
The Interscience Encyclopedia, Inc.
Gaya MLA
Kirk, Raymond, E., Donald, F., Othmer,.
"Encyclopedia of chemical technology [Vol.3]".
vol.3
New York:
The Interscience Encyclopedia, Inc,
1949.
Text.