APA
New York City Departament of Health, . (1991). Prenatal and Infant Care guide. : .
Chicago
New York City Departament of Health, . 1991. Prenatal and Infant Care guide. : .
Harvard
New York City Departament of Health, . (1991). Prenatal and Infant Care guide. : .
MLA
New York City Departament of Health, . Prenatal and Infant Care guide. : . 1991.
