Dyfyniad APA

Crotty,, M. (1998). Foundations of social research (1st.). Sage.

Dyfyniad Arddull Chicago

Crotty,, Michael. Foundations of Social Research. 1st. London: Sage, 1998.

Dyfyniad MLA

Crotty,, Michael. Foundations of Social Research. 1st. Sage, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.