Gaya APA

Kusters, F, J, G. et al (2014). Ampullar ectopic pregnancy following ipsilateral partial isthmic salpingectomy (Gynecol Surg (2014) 11:227–229). USA: Springer.

Gaya MLA

Kusters, F., J., G.. et al. "Ampullar ectopic pregnancy following ipsilateral partial isthmic salpingectomy". Gynecol Surg (2014) 11:227–229 USA: Springer, 2014. Text.