Dyfyniad APA

 Netting, F. E. (2008).  Comparative approaches to program planning.  John Wiley & Sons.

Dyfyniad Arddull Chicago

 Netting, F. Ellen.  Comparative Approaches to Program Planning.  John Wiley & Sons, 2008.

Dyfyniad MLA

 Netting, F. Ellen.  Comparative Approaches to Program Planning.  John Wiley & Sons, 2008.

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