Cita APA (7a ed.)
M, E., K, A., A, H., & H, S. (2011). Paternal occupational exposures and the risk of congenital malformations - A case-control study. International Journal of Occupational Medicine & Environmental Health, 24(2), 218-228.
Cita Chicago Style (17a ed.)
M, El-Helaly, Abdel-Elah K, Haussein A, y Shalaby H. "Paternal Occupational Exposures and the Risk of Congenital Malformations - A Case-control Study." International Journal of Occupational Medicine & Environmental Health 24, no. 2 (2011): 218-228.
Cita MLA (9a ed.)
M, El-Helaly, et al. "Paternal Occupational Exposures and the Risk of Congenital Malformations - A Case-control Study." International Journal of Occupational Medicine & Environmental Health, vol. 24, no. 2, 2011, pp. 218-228.
Precaución: Estas citas no son 100% exactas.