APA
(1982). The Hopkins school of Hygiene and Public Health. Washington: Amercab Polyraph Association.
Chicago
1982. The Hopkins school of Hygiene and Public Health. Washington: Amercab Polyraph Association.
Harvard
(1982). The Hopkins school of Hygiene and Public Health. Washington: Amercab Polyraph Association.
MLA
The Hopkins school of Hygiene and Public Health. Washington: Amercab Polyraph Association. 1982.
