Dyfyniad APA

Swanson, C. P., & Webster,Peter L. (1978). Cell/4th ed (4th ed.). Prentice hall.

Dyfyniad Arddull Chicago

Swanson, Carl P., and Webster,Peter L. Cell/4th Ed. 4th ed. New delhi: Prentice hall, 1978.

Dyfyniad MLA

Swanson, Carl P., and Webster,Peter L. Cell/4th Ed. 4th ed. Prentice hall, 1978.

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