Dyfyniad APA

Kloppenburg, J., Holemans, D., & Reheul, D. (2001). Onedele zaadveredeling? Brussel: Wervel.

Dyfyniad Arddull Chicago

Kloppenburg, Jack, Dirk Holemans, and Dirk Reheul. Onedele Zaadveredeling? Brussel: Wervel, 2001.

Dyfyniad MLA

Kloppenburg, Jack, et al. Onedele Zaadveredeling? Brussel: Wervel, 2001.

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