KARSTEIN,H. (1986). POSITIVE THINKING FOR POSITIVE LIVING. H. KARSTEIN.
Chicagoスタイル(17版)引用形式KARSTEIN,H. POSITIVE THINKING FOR POSITIVE LIVING. BOMBAY: H. KARSTEIN, 1986.
MLA(9版)引用形式KARSTEIN,H. POSITIVE THINKING FOR POSITIVE LIVING. H. KARSTEIN, 1986.
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