Dyfyniad APA

Rolph, P. (1992). How to Choose & Use an Execuitive Information System. Viva.

Dyfyniad Arddull Chicago

Rolph, Paul. How to Choose & Use an Execuitive Information System. New Delhi: Viva, 1992.

Dyfyniad MLA

Rolph, Paul. How to Choose & Use an Execuitive Information System. Viva, 1992.

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