Gaya APA
Copi, Irving M.. ().
Introduction to Logic fourth Edition .
New York:
Macmillan Publishing Co, Inc.
Gaya Chicago
Copi, Irving M..
Introduction to Logic fourth Edition.
New York:
Macmillan Publishing Co, Inc,
.
Text.
Gaya MLA
Copi, Irving M..
Introduction to Logic fourth Edition.
New York:
Macmillan Publishing Co, Inc,
.
Text.
Gaya Turabian
Copi, Irving M..
Introduction to Logic fourth Edition.
New York:
Macmillan Publishing Co, Inc,
.
Print.