Wrana, P. Historical review: Circumcision. Archives of Pediatrics. 1939, 56: 385–392. as quoted in: Zoske, Joseph. Male Circumcision: A Gender Perspective. The Journal of Men's Studies. Winter 1998, 6 (2): 189–208 [2006-06-14]. (原始内容存档于2006-06-15).
Wrana, P. Historical review: Circumcision. Archives of Pediatrics. 1939, 56: 385–392. as quoted in: Zoske, Joseph. Male Circumcision: A Gender Perspective. The Journal of Men's Studies. Winter 1998, 6 (2): 189–208 [2006-06-14]. (原始内容存档于2006-06-15).