APA
WHO, . (1989). Strengthening the performance of community health workers in primary health care. World health organization, Geneva: .
Chicago
WHO, . 1989. Strengthening the performance of community health workers in primary health care. World health organization, Geneva: .
Harvard
WHO, . (1989). Strengthening the performance of community health workers in primary health care. World health organization, Geneva: .
MLA
WHO, . Strengthening the performance of community health workers in primary health care. World health organization, Geneva: . 1989.