Gaya APA
Curtis, Donald. (1962).
Human Problems and How to Solve Them .
USA:
Prentice Hall.
Gaya Chicago
Curtis, Donald.
Human Problems and How to Solve Them.
USA:
Prentice Hall,
1962.
Texts.
Gaya MLA
Curtis, Donald.
Human Problems and How to Solve Them.
USA:
Prentice Hall,
1962.
Texts.
Gaya Turabian
Curtis, Donald.
Human Problems and How to Solve Them.
USA:
Prentice Hall,
1962.
Texts.