Dyfyniad APA

Chriss, M., & Hayes, G. R. (1964). An introduction to charts and their use (3a. ed.). Brown and Ferguson.

Dyfyniad Arddull Chicago

Chriss, M., and G. R. Hayes. An Introduction to Charts and Their Use. 3a. ed. Glasgow: Brown and Ferguson, 1964.

Dyfyniad MLA

Chriss, M., and G. R. Hayes. An Introduction to Charts and Their Use. 3a. ed. Brown and Ferguson, 1964.

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