Dyfyniad APA

Guy, R. K. (1981). Unsolved problems in number theory. Springer-Verlag.

Dyfyniad Arddull Chicago

Guy, Richard K. Unsolved Problems in Number Theory. New York: Springer-Verlag, 1981.

Dyfyniad MLA

Guy, Richard K. Unsolved Problems in Number Theory. Springer-Verlag, 1981.

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