Gaya APA
Copi, Irving M.. (1953).
Introduction to logic .
New York:
The MacMillan Co..
Gaya Chicago
Copi, Irving M..
Introduction to logic.
New York:
The MacMillan Co.,
1953.
Text.
Gaya MLA
Copi, Irving M..
Introduction to logic.
New York:
The MacMillan Co.,
1953.
Text.
Gaya Turabian
Copi, Irving M..
Introduction to logic.
New York:
The MacMillan Co.,
1953.
Print.