Dyfyniad APA

McKnight, P. E., McKnight, K. M., Sidani, S., & Figuredo, A. J. (2008). Missing data: A gentle introduction. New Age International.

Dyfyniad Arddull Chicago

McKnight, Patrick E., Katherine M. McKnight, Souraya Sidani, and Aurelio Jose Figuredo. Missing Data: A Gentle Introduction. New Delhi: New Age International, 2008.

Dyfyniad MLA

McKnight, Patrick E., et al. Missing Data: A Gentle Introduction. New Age International, 2008.

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