Dyfyniad APA

VanCleave, J. P. (2003). Janice Van Cleave's A+ science fair projects. John Wiley and Sons, Inc.

Dyfyniad Arddull Chicago

VanCleave, Janice Pratt. Janice Van Cleave's A+ Science Fair Projects. New Jersey: John Wiley and Sons, Inc, 2003.

Dyfyniad MLA

VanCleave, Janice Pratt. Janice Van Cleave's A+ Science Fair Projects. John Wiley and Sons, Inc, 2003.

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