Lawson, J. O. (1974). Pelvic anatomy. II. Anal canal and associated sphincters. Royal College of Surgeons of England.
استشهاد بنمط شيكاغوLawson, J. O. Pelvic Anatomy. II. Anal Canal and Associated Sphincters. Royal College of Surgeons of England, 1974.
MLA استشهادLawson, J. O. Pelvic Anatomy. II. Anal Canal and Associated Sphincters. Royal College of Surgeons of England, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.