Dyfyniad APA

Gerring, J. (2007). Case study research: Principles and practices. Cambridge University Press.

Dyfyniad Arddull Chicago

Gerring, John. Case Study Research: Principles and Practices. New York: Cambridge University Press, 2007.

Dyfyniad MLA

Gerring, John. Case Study Research: Principles and Practices. Cambridge University Press, 2007.

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