Dyfyniad APA

Frankel, L. B. (1970). This crowded world; an introduction to the study of population. Columbia Books.

Dyfyniad Arddull Chicago

Frankel, Lillian Berson. This Crowded World; an Introduction to the Study of Population. Washington: Columbia Books, 1970.

Dyfyniad MLA

Frankel, Lillian Berson. This Crowded World; an Introduction to the Study of Population. Columbia Books, 1970.

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