APA Style
Heilbroner, Robert L.. (1999).
The Worldly Philosophers (Seventh edition).
USA:
Simon & Schuster Inc..
Chicago Style
Heilbroner, Robert L..
The Worldly Philosophers.
Seventh edition
USA:
Simon & Schuster Inc.,
1999.
Text.
MLA Style
Heilbroner, Robert L..
The Worldly Philosophers.
Seventh edition
USA:
Simon & Schuster Inc.,
1999.
Text.
Turabian Style
Heilbroner, Robert L..
The Worldly Philosophers.
Seventh edition
USA:
Simon & Schuster Inc.,
1999.
Print.