APA Style
Britannica, E. (1978).
Encyclopaedia Britannica IV : Micropaedia Excom Hermosil (15 th).
Chicago:
The University of Chicago Press.
MLA Style
Britannica, Encyclopaedia.
"Encyclopaedia Britannica IV : Micropaedia Excom Hermosil".
15 th
Chicago:
The University of Chicago Press,
1978.
Hardcover.