APA

Thomas B., Housden M. & Institute of Direct Marketing. (2002). Direct marketing in practice. Boston: Elseiver.

Chicago

Thomas Brian, Housden Mathew and Institute of Direct Marketing. 2002. Direct marketing in practice. Boston: Elseiver.

Harvard

Thomas B., Housden M. and Institute of Direct Marketing. (2002). Direct marketing in practice. Boston: Elseiver.

MLA

Thomas Brian, Housden Mathew and Institute of Direct Marketing. Direct marketing in practice. Boston: Elseiver. 2002.