Dyfyniad APA

Yoder, P. J., Lloyd, B., & Symons, F. J. Observational measurement of behavior (Second Edition.). : Brookes.

Dyfyniad Arddull Chicago

Yoder, Paul Jordan, Blair Lloyd, and Frank James Symons. Observational Measurement of Behavior. Second Edition. USA: : Brookes.

Dyfyniad MLA

Yoder, Paul Jordan, et al. Observational Measurement of Behavior. Second Edition. : Brookes.

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