David E Noakes, Geoffrey.H Arthur, Gray C.W England, & Timothy J Parkinson. (2001). Arthur's veterinary reproduction and obstetrics (8th.). Philadelphia.
استشهاد بنمط شيكاغوDavid E Noakes, Geoffrey.H Arthur, Gray C.W England, و Timothy J Parkinson. Arthur's Veterinary Reproduction and Obstetrics. 8th. Philadelphia, 2001.
MLA استشهادDavid E Noakes, et al. Arthur's Veterinary Reproduction and Obstetrics. 8th. Philadelphia, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.