Cita APA (7th ed.)

World Health Organisation. (1994). Estimating Drug Requirements: A practical manual : action programme an essential drug & vaccines.

Cita Chicago (17th ed.)

World Health Organisation. Estimating Drug Requirements: A Practical Manual : Action Programme an Essential Drug & Vaccines. New Delhi, 1994.

Cita MLA (9th ed.)

World Health Organisation. Estimating Drug Requirements: A Practical Manual : Action Programme an Essential Drug & Vaccines. 1994.