Dyfyniad APA

Sorenson, S. (1999). The research paper: A contemporary approach. Amsco School Publications.

Dyfyniad Arddull Chicago

Sorenson, Sharon. The Research Paper: A Contemporary Approach. New York: Amsco School Publications, 1999.

Dyfyniad MLA

Sorenson, Sharon. The Research Paper: A Contemporary Approach. Amsco School Publications, 1999.

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