Dyfyniad APA

Lerner, R. . M., & Spanier, G. B. (1980). Adolescent development: A life - span perspective. McGraw-Hill.

Dyfyniad Arddull Chicago

Lerner, Richard M., and Graham B. Spanier. Adolescent Development: A Life - Span Perspective. New York: McGraw-Hill, 1980.

Dyfyniad MLA

Lerner, Richard M., and Graham B. Spanier. Adolescent Development: A Life - Span Perspective. McGraw-Hill, 1980.

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