WHITEHEAD GEOFFREY. (1982). PITMAN BUSINESS CORRESPONDENCE. PITMAN PUBLICATIONS.
Cita Chicago Style (17a ed.)WHITEHEAD GEOFFREY. PITMAN BUSINESS CORRESPONDENCE. LONDON: PITMAN PUBLICATIONS, 1982.
Cita MLA (9a ed.)WHITEHEAD GEOFFREY. PITMAN BUSINESS CORRESPONDENCE. PITMAN PUBLICATIONS, 1982.
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