Gaya APA
Vivian, Frederick. (1969).
Thinking philosophically : an introduction for students .
New York:
Basic Books.
Gaya Chicago
Vivian, Frederick.
Thinking philosophically : an introduction for students.
New York:
Basic Books,
1969.
Text.
Gaya MLA
Vivian, Frederick.
Thinking philosophically : an introduction for students.
New York:
Basic Books,
1969.
Text.
Gaya Turabian
Vivian, Frederick.
Thinking philosophically : an introduction for students.
New York:
Basic Books,
1969.
Print.