Dyfyniad APA

Roberts, R. J., & Shepherd, C. J. (1974). Handbook of trout and salmon diseases. Fishing News Books.

Dyfyniad Arddull Chicago

Roberts, Ronald J., and C. Jonathan Shepherd. Handbook of Trout and Salmon Diseases. Surrey: Fishing News Books, 1974.

Dyfyniad MLA

Roberts, Ronald J., and C. Jonathan Shepherd. Handbook of Trout and Salmon Diseases. Fishing News Books, 1974.

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