APA (7th ed.) Citation

Lwanga, S. K., & Lemeshow, S. (1991). Sample size determination in health studies: A practical manual. World Health Organization.

Chicago Style (17th ed.) Citation

Lwanga, S. Kaggwa, and Stanley Lemeshow. Sample Size Determination in Health Studies: A Practical Manual. Geneva: World Health Organization, 1991.

MLA (9th ed.) Citation

Lwanga, S. Kaggwa, and Stanley Lemeshow. Sample Size Determination in Health Studies: A Practical Manual. World Health Organization, 1991.