APA Style
Ley, Willy. (1981).
Pustaka Alam Life : Kutub .
Jakarta:
Tira Pustaka.
Chicago Style
Ley, Willy.
Pustaka Alam Life : Kutub.
Jakarta:
Tira Pustaka,
1981.
Text.
MLA Style
Ley, Willy.
Pustaka Alam Life : Kutub.
Jakarta:
Tira Pustaka,
1981.
Text.
Turabian Style
Ley, Willy.
Pustaka Alam Life : Kutub.
Jakarta:
Tira Pustaka,
1981.
Print.