APA Style

Organization, W, H. (1991). Towards the Elimination of Hapatitis B: A Guide to the Implementation of National Immunization Programs in the Developing World . Cameroon: Ministry of Health, Republic of Cameroon.

MLA Style

Organization, World, Health. "Towards the Elimination of Hapatitis B: A Guide to the Implementation of National Immunization Programs in the Developing World". Cameroon: Ministry of Health, Republic of Cameroon, 1991. print.