APA Style
Guillaume, Alfred. (1975).
Islam .
New York:
Penguin Books.
Chicago Style
Guillaume, Alfred.
Islam.
New York:
Penguin Books,
1975.
Text.
MLA Style
Guillaume, Alfred.
Islam.
New York:
Penguin Books,
1975.
Text.
Turabian Style
Guillaume, Alfred.
Islam.
New York:
Penguin Books,
1975.
Print.