Dyfyniad APA

Dawson, E. Y. (1956). How to know the seaweeds. W. C. Brown.

Dyfyniad Arddull Chicago

Dawson, Elmer Yale. How to Know the Seaweeds. Dubuque, IA: W. C. Brown, 1956.

Dyfyniad MLA

Dawson, Elmer Yale. How to Know the Seaweeds. W. C. Brown, 1956.

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