Citazione Stile APA (7a Edizione)

(2004). Immunization in Practice A practical guide for health staff. WHO.

Citazione stile Chigago Style (17a edizione)

Immunization in Practice A Practical Guide for Health Staff. Ginebra: WHO, 2004.

Citatione MLA (9a ed.)

Immunization in Practice A Practical Guide for Health Staff. WHO, 2004.