Dyfyniad APA

Roberts, R. J., & Roberts, R. J. Handbook of trout and salmon diseases.

Dyfyniad Arddull Chicago

Roberts, Ronald J., and R J. Roberts. Handbook of Trout and Salmon Diseases.

Dyfyniad MLA

Roberts, Ronald J., and R J. Roberts. Handbook of Trout and Salmon Diseases.

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