Gaya APA
WALLCE, George J.. (1955).
An Introduction to Ornithology .
New York:
The Macmillan Company.
Gaya Chicago
WALLCE, George J..
An Introduction to Ornithology.
New York:
The Macmillan Company,
1955.
Teks.
Gaya MLA
WALLCE, George J..
An Introduction to Ornithology.
New York:
The Macmillan Company,
1955.
Teks.
Gaya Turabian
WALLCE, George J..
An Introduction to Ornithology.
New York:
The Macmillan Company,
1955.
Teks.