Dyfyniad APA

Prochnow, D., & Prochnow, K. (1993). Why: Experiments for the young scientist. TAB Books.

Dyfyniad Arddull Chicago

Prochnow, Dave, and Kathy Prochnow. Why: Experiments for the Young Scientist. Blue Ridge Summit, PA: TAB Books, 1993.

Dyfyniad MLA

Prochnow, Dave, and Kathy Prochnow. Why: Experiments for the Young Scientist. TAB Books, 1993.

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