APA

Hirsch E., Elue R., Wagner A., Nelson K., Silver R. K., Zhou Y. & Adams M. G. (20150728). Severe perineal laceration during operative vaginal delivery: the impact of occiput posterior position. : Journal of perinatology : official journal of the California Perinatal Association.

Chicago

Hirsch E, Elue R, Wagner A, Nelson K, Silver R K, Zhou Y and Adams M G. 20150728. Severe perineal laceration during operative vaginal delivery: the impact of occiput posterior position. : Journal of perinatology : official journal of the California Perinatal Association.

Harvard

Hirsch E., Elue R., Wagner A., Nelson K., Silver R. K., Zhou Y. and Adams M. G. (20150728). Severe perineal laceration during operative vaginal delivery: the impact of occiput posterior position. : Journal of perinatology : official journal of the California Perinatal Association.

MLA

Hirsch E, Elue R, Wagner A, Nelson K, Silver R K, Zhou Y and Adams M G. Severe perineal laceration during operative vaginal delivery: the impact of occiput posterior position. : Journal of perinatology : official journal of the California Perinatal Association. 20150728.