Penggayaan APA
CURTIS, Helena. (1968).
Biology (Ed. 2).
New York:
Worth Publishers.
Chicago Style
CURTIS, Helena.
Biology.
Ed. 2
New York:
Worth Publishers,
1968.
Buku.
MLA Style
CURTIS, Helena.
Biology.
Ed. 2
New York:
Worth Publishers,
1968.
Buku.
Turabian Style
CURTIS, Helena.
Biology.
Ed. 2
New York:
Worth Publishers,
1968.
Buku.