APA Style
Heilbroner, Robert L.. (1961).
Worldly Philosophers .
New York:
Time Incorporated.
Chicago Style
Heilbroner, Robert L..
Worldly Philosophers.
New York:
Time Incorporated,
1961.
Buku Teks.
MLA Style
Heilbroner, Robert L..
Worldly Philosophers.
New York:
Time Incorporated,
1961.
Buku Teks.
Turabian Style
Heilbroner, Robert L..
Worldly Philosophers.
New York:
Time Incorporated,
1961.
Buku Teks.