Dyfyniad APA

Loehlin,John C. (1992). Genes and environment in personality development. Sage.

Dyfyniad Arddull Chicago

Loehlin,John C. Genes and Environment in Personality Development. New Delhi: Sage, 1992.

Dyfyniad MLA

Loehlin,John C. Genes and Environment in Personality Development. Sage, 1992.

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