Gaya APA
Wingo, P, A., Rubin, G, L. (1994).
An Epidemiologic Approach Reproduct Health (1.ed).
Switzerland:
World Health Organization.
Gaya MLA
Wingo, Phylis, A.., Rubin, George, L..
"An Epidemiologic Approach Reproduct Health".
1.ed
Switzerland:
World Health Organization,
1994.
Buku Teks.