Dyfyniad APA

Santrock, J. . W. (2019). Life- Span Development. M C Graw-Hill Education.

Dyfyniad Arddull Chicago

Santrock, John W. Life- Span Development. M C Graw-Hill Education, 2019.

Dyfyniad MLA

Santrock, John W. Life- Span Development. M C Graw-Hill Education, 2019.

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