Dyfyniad APA

Hellman, H. (1975). Psychosocial and cultural determinants of population policy. Interdisciplinary Communications Program.

Dyfyniad Arddull Chicago

Hellman, Hal. Psychosocial and Cultural Determinants of Population Policy. Washington: Interdisciplinary Communications Program, 1975.

Dyfyniad MLA

Hellman, Hal. Psychosocial and Cultural Determinants of Population Policy. Interdisciplinary Communications Program, 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.