Dyfyniad APA

Lenburg, J. (2007). Viva-Facts on file guide to research. Viva Books Private Limited.

Dyfyniad Arddull Chicago

Lenburg, Jeff. Viva-Facts on File Guide to Research. New Delhi: Viva Books Private Limited, 2007.

Dyfyniad MLA

Lenburg, Jeff. Viva-Facts on File Guide to Research. Viva Books Private Limited, 2007.

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