Dyfyniad APA

Rich, P. M., & Dean, Y. (1999). Principles of element design. Butterworth-Heinemenn.

Dyfyniad Arddull Chicago

Rich, Peter Maurice, and Yvonne Dean. Principles of Element Design. Oxford: Butterworth-Heinemenn, 1999.

Dyfyniad MLA

Rich, Peter Maurice, and Yvonne Dean. Principles of Element Design. Butterworth-Heinemenn, 1999.

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