Gaya APA
BROWN, Harrison. (1954).
The Challenge of Man's Future .
New York:
The Viking Press.
Gaya Chicago
BROWN, Harrison.
The Challenge of Man's Future.
New York:
The Viking Press,
1954.
Teks.
Gaya MLA
BROWN, Harrison.
The Challenge of Man's Future.
New York:
The Viking Press,
1954.
Teks.
Gaya Turabian
BROWN, Harrison.
The Challenge of Man's Future.
New York:
The Viking Press,
1954.
Teks.