Cita APA (7th ed.)

KARSTEIN H. (1986). POSITIVE THINKING FOR POSITIVE LIVING. H.KARSTEIN.

Cita Chicago (17th ed.)

KARSTEIN H. POSITIVE THINKING FOR POSITIVE LIVING. BOMBAY: H.KARSTEIN, 1986.

Cita MLA (9th ed.)

KARSTEIN H. POSITIVE THINKING FOR POSITIVE LIVING. H.KARSTEIN, 1986.