Παραπομπή APA

Olsen, W. E. (2010). Realist methodology. Sage Publications Ltd..

Παραπομπή Chicago Style

Olsen, Wendy Ed. Realist Methodology. London: Sage Publications Ltd., 2010.

Παραπομπή MLA

Olsen, Wendy Ed. Realist Methodology. Sage Publications Ltd., 2010.