Gaya APA
Johnson, Willis H. (1961).
Biology (Edisi Revisi).
New York:
Holt, Rinehart and winston.
Gaya Chicago
Johnson, Willis H.
Biology.
Edisi Revisi
New York:
Holt, Rinehart and winston,
1961.
Text.
Gaya MLA
Johnson, Willis H.
Biology.
Edisi Revisi
New York:
Holt, Rinehart and winston,
1961.
Text.
Gaya Turabian
Johnson, Willis H.
Biology.
Edisi Revisi
New York:
Holt, Rinehart and winston,
1961.
Print.