APA aipamena

Fine, P. E. M., Oblapenko, G., & Sutter, R. W. (2004). Polio control after certification: Major issues outstanding. World Health Organization.

Chicago Style aipamena

Fine, Paul E. M., George Oblapenko, and Roland W. Sutter. Polio Control After Certification: Major Issues Outstanding. World Health Organization, 2004.

MLA aipamena

Fine, Paul E. M., George Oblapenko, and Roland W. Sutter. Polio Control After Certification: Major Issues Outstanding. World Health Organization, 2004.