Gaya APA
Keen, Sam. (1967).
Gabriel Marcel .
Virginia:
John Knox Press.
Gaya Chicago
Keen, Sam.
Gabriel Marcel.
Virginia:
John Knox Press,
1967.
Text.
Gaya MLA
Keen, Sam.
Gabriel Marcel.
Virginia:
John Knox Press,
1967.
Text.
Gaya Turabian
Keen, Sam.
Gabriel Marcel.
Virginia:
John Knox Press,
1967.
Print.