APA ציטוט

van Look, P. F., & von Hertzen, H. (1995). Misoprostol and birth defects. BMJ Group.

Citação norma Chicago

van Look, P. F., and H. von Hertzen. Misoprostol and Birth Defects. BMJ Group, 1995.

ציטוט MLA

van Look, P. F., and H. von Hertzen. Misoprostol and Birth Defects. BMJ Group, 1995.