Cita APA

Lwanga S.K & Lemeshow S. (1991). Sample Size determination in health studies: A practical manual. WHO.

Citación estilo Chicago

Lwanga S.K and Lemeshow S. Sample Size Determination in Health Studies: A Practical Manual. England: WHO, 1991.

Cita MLA

Lwanga S.K and Lemeshow S. Sample Size Determination in Health Studies: A Practical Manual. WHO, 1991.