APA Citatie

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

Chicago Style citaat

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

MLA citatie

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

Let op: Deze citaties zijn niet altijd 100% accuraat.