Gaya APA
Weller, R, H.
(1981).
Population Demography and Policy
(
1th)
.
New York:
St.Martin\'s Pres.
Gaya MLA
Weller, Robert, H..
"Population Demography and Policy".
1th
New York:
St.Martin\'s Pres,
1981.
Buku Teks.