APA Style

Levinson, Harry. (1983). Eksekutif (1983). : PPM.

Chicago Style

Levinson, Harry. Eksekutif. 1983 : PPM, 1983. .

MLA Style

Levinson, Harry. Eksekutif. 1983 : PPM, 1983. .

Turabian Style

Levinson, Harry. Eksekutif. 1983 : PPM, 1983. .