Gaya APA
Heilbroner, Robert. (1986).
The Worldly philosophers : the lives, and ideas of the great .
New York:
Penguin Books.
Gaya Chicago
Heilbroner, Robert.
The Worldly philosophers : the lives, and ideas of the great.
New York:
Penguin Books,
1986.
Text.
Gaya MLA
Heilbroner, Robert.
The Worldly philosophers : the lives, and ideas of the great.
New York:
Penguin Books,
1986.
Text.
Gaya Turabian
Heilbroner, Robert.
The Worldly philosophers : the lives, and ideas of the great.
New York:
Penguin Books,
1986.
Print.