APA Баримт

Cummings R. (1987). Contemporary selling. Harcourt, Brace, Jovanovich.

Чикаго маягийн жагсаалт

Cummings R. Contemporary Selling. San Diego: Harcourt, Brace, Jovanovich, 1987.

MLA ишлэл

Cummings R. Contemporary Selling. Harcourt, Brace, Jovanovich, 1987.

Warning: These citations may not always be 100% accurate.