Gaya APA

Sigband, D, N, B, ;, N, B. (1989). Communicating in business (ed. 3). Boston: SCOTT, FORESMAN and COMPANY.

Gaya MLA

Sigband, David, N., Bateman, ;, Norman, B.. "Communicating in business". ed. 3 Boston: SCOTT, FORESMAN and COMPANY, 1989. Text.