Dyfyniad APA

LEAL A R. (1987). BACKGROUND TO BUSINESS (3RD.). PITMAN PUBLICATIONS.

Dyfyniad Arddull Chicago

LEAL A R. BACKGROUND TO BUSINESS. 3RD. LONDON: PITMAN PUBLICATIONS, 1987.

Dyfyniad MLA

LEAL A R. BACKGROUND TO BUSINESS. 3RD. PITMAN PUBLICATIONS, 1987.

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