Gaya APA

Schick, T., Vaughn, L. (1999). Doing Philosophy : An Introduction Through Thought Experiments (Ed. 1). Boston: Mcgraw Hill, Inc.

Gaya MLA

Schick, Theodore., Vaughn, Lewis. "Doing Philosophy : An Introduction Through Thought Experiments". Ed. 1 Boston: Mcgraw Hill, Inc, 1999. Text.