Dyfyniad APA

Crandell, T. L., & Crandell, C. H. (2009). Human development. New York: McGraw-Hill Higher Education.

Dyfyniad Arddull Chicago

Crandell, Thomas L., và Corinne Haines Crandell. Human Development. New York: McGraw-Hill Higher Education, 2009.

Dyfyniad MLA

Crandell, Thomas L., và Corinne Haines Crandell. Human Development. New York: McGraw-Hill Higher Education, 2009.

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