Gaya APA
Wriston, H, M.
(1965).
The Population Dilema
(
Pertama)
.
Englewood Cliffs, N.J.:
Prentice-Hall.
Gaya MLA
Wriston, Henry, M..
"The Population Dilema".
Pertama
Englewood Cliffs, N.J.:
Prentice-Hall,
1965.
Text.