APA Цитирование

Cassels, J. (1960). How to sell successfully by direct mail. Business publications.

Chicago-стиль цитирования

Cassels, J.W.W. How to Sell Successfully by Direct Mail. London: Business publications, 1960.

MLA-цитирование

Cassels, J.W.W. How to Sell Successfully by Direct Mail. Business publications, 1960.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.