Cita APA (7th ed.)

World Health Organization. (1993). Health Research Methodology: A guide for Training in Research Methods. OXFORD UNIVERSITY PRESS.

Cita Chicago (17th ed.)

World Health Organization. Health Research Methodology: A Guide for Training in Research Methods. New Delhi: OXFORD UNIVERSITY PRESS, 1993.

Cita MLA (9th ed.)

World Health Organization. Health Research Methodology: A Guide for Training in Research Methods. OXFORD UNIVERSITY PRESS, 1993.