Gaya APA
Heilbroner, Robert. (1974).
An Iquiry into the human prospect .
New York:
W.W Norton.
Gaya Chicago
Heilbroner, Robert.
An Iquiry into the human prospect.
New York:
W.W Norton,
1974.
Text.
Gaya MLA
Heilbroner, Robert.
An Iquiry into the human prospect.
New York:
W.W Norton,
1974.
Text.
Gaya Turabian
Heilbroner, Robert.
An Iquiry into the human prospect.
New York:
W.W Norton,
1974.
Print.