Dyfyniad APA

ELDERtON , W. i. P. a. J. l., & ELDERTON, W. P. a. J. l. (1969). Systems of Frequency Curves. C.U. Press.

Dyfyniad Arddull Chicago

ELDERtON , W illiam Plain and JOHNSON,Norman lloyd, and William Plain and JOHNSOn,Norman lloyd ELDERTON. Systems of Frequency Curves. Cambridge: C.U. Press, 1969.

Dyfyniad MLA

ELDERtON , W illiam Plain and JOHNSON,Norman lloyd, and William Plain and JOHNSOn,Norman lloyd ELDERTON. Systems of Frequency Curves. C.U. Press, 1969.

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