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.