Gaya APA
The influence of social class on the need and effective demand for children. (1976).
Yogyakarta:
Population Institute, Gadjah Mada Univerity.
Gaya MLA
The influence of social class on the need and effective demand for children.
.
Yogyakarta:
Population Institute, Gadjah Mada Univerity,
1976.
Buku.