APA (7th ed.) Citation

HT, M., JM, H., & CR, H. (1984). Ectopic pregnancy in the United States, 1979-1980. MMWR. CDC surveillance summaries : Morbidity and mortality weekly report. CDC surveillance summaries, 33(2), 1SS.

Chicago Style (17th ed.) Citation

HT, MacKay, Hughes JM, and Hogue CR. "Ectopic Pregnancy in the United States, 1979-1980." MMWR. CDC Surveillance Summaries : Morbidity and Mortality Weekly Report. CDC Surveillance Summaries 33, no. 2 (1984): 1SS.

MLA (9th ed.) Citation

HT, MacKay, et al. "Ectopic Pregnancy in the United States, 1979-1980." MMWR. CDC Surveillance Summaries : Morbidity and Mortality Weekly Report. CDC Surveillance Summaries, vol. 33, no. 2, 1984, p. 1SS.