Dyfyniad APA

Allard, L. (1994). How to improve your sales performance. UBS Publishers'.

Dyfyniad Arddull Chicago

Allard, Lloyd. How to Improve Your Sales Performance. New Delhi: UBS Publishers', 1994.

Dyfyniad MLA

Allard, Lloyd. How to Improve Your Sales Performance. UBS Publishers', 1994.

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