APA (7th ed.) Citation

Rosenthal, S. R., & Clements, C. J. (1993). Two-dose measles vaccination schedules. Bulletin of the World Health Organization, 71(3/4), 421.

Chicago Style (17th ed.) Citation

Rosenthal, S. R., and C. J. Clements. "Two-dose Measles Vaccination Schedules." Bulletin of the World Health Organization 71, no. 3/4 (1993): 421.

MLA (9th ed.) Citation

Rosenthal, S. R., and C. J. Clements. "Two-dose Measles Vaccination Schedules." Bulletin of the World Health Organization, vol. 71, no. 3/4, 1993, p. 421.