Dyfyniad APA

Bell,Colin, & Newby,Howard. (1977). Doing Sociological research. George Allen & Unwin.

Dyfyniad Arddull Chicago

Bell,Colin, and Newby,Howard. Doing Sociological Research. London: George Allen & Unwin, 1977.

Dyfyniad MLA

Bell,Colin, and Newby,Howard. Doing Sociological Research. George Allen & Unwin, 1977.

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