Dyfyniad APA

POSNER, G. D., & DY, J. (2013). Oxorn- Foote Human Labor & Birth. Mc Grawhill.

Dyfyniad Arddull Chicago

POSNER, Glenn D., and Jessica DY. Oxorn- Foote Human Labor & Birth. Mc Grawhill, 2013.

Dyfyniad MLA

POSNER, Glenn D., and Jessica DY. Oxorn- Foote Human Labor & Birth. Mc Grawhill, 2013.

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