Dyfyniad APA

Duck, S. E., & Silver, R. C. E. (1990). Personal relationships and social support.

Dyfyniad Arddull Chicago

Duck, Steve; Ed, and Roxane Cohen; Ed Silver. Personal Relationships and Social Support. New Delhi, Sage Publications, 1990.

Dyfyniad MLA

Duck, Steve; Ed, and Roxane Cohen; Ed Silver. Personal Relationships and Social Support. 1990.

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