Gaya APA
LONG, William J.. (1956).
The Spirit if the Wild (4th. ed.).
New York:
Doubleday Company.
Gaya Chicago
LONG, William J..
The Spirit if the Wild.
4th. ed.
New York:
Doubleday Company,
1956.
Teks.
Gaya MLA
LONG, William J..
The Spirit if the Wild.
4th. ed.
New York:
Doubleday Company,
1956.
Teks.
Gaya Turabian
LONG, William J..
The Spirit if the Wild.
4th. ed.
New York:
Doubleday Company,
1956.
Teks.