Dyfyniad APA

Layder, D. (2018). Investigative research: Theory and practice. Sage.

Dyfyniad Arddull Chicago

Layder, Derek. Investigative Research: Theory and Practice. London: Sage, 2018.

Dyfyniad MLA

Layder, Derek. Investigative Research: Theory and Practice. Sage, 2018.

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