Styl cytowania APA

Whitehead, G., & Whitehead, D. H. . .. (1992). Pitman business correspondence. Wheeler Publisher.

Styl cytowania Chicago

Whitehead, Geoffrey, i David H. Whitehead. Pitman Business Correspondence. New Delhi: Wheeler Publisher, 1992.

Styl cytowania MLA

Whitehead, Geoffrey, i David H. Whitehead. Pitman Business Correspondence. Wheeler Publisher, 1992.