APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

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

MLA-čujuhus (9. p.)

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

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