Dyfyniad APA

Sanfilippo, M. (1989). Figure it out: Number skills. Price Stern Sloan.

Dyfyniad Arddull Chicago

Sanfilippo, Margaret. Figure It Out: Number Skills. Los Angeles, Calif: Price Stern Sloan, 1989.

Dyfyniad MLA

Sanfilippo, Margaret. Figure It Out: Number Skills. Price Stern Sloan, 1989.

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