Cita APA (7th ed.)

WHITEHEAD GEOFFREY. (1982). PITMAN BUSINESS CORRESPONDENCE. PITMAN PUBLICATIONS.

Cita Chicago (17th ed.)

WHITEHEAD GEOFFREY. PITMAN BUSINESS CORRESPONDENCE. LONDON: PITMAN PUBLICATIONS, 1982.

Cita MLA (9th ed.)

WHITEHEAD GEOFFREY. PITMAN BUSINESS CORRESPONDENCE. PITMAN PUBLICATIONS, 1982.