Dyfyniad APA

Overbeek, J. (1970). Comparative thoughts on overpopulation between the two world wars. Drukkerij Princo.

Dyfyniad Arddull Chicago

Overbeek, Johannes. Comparative Thoughts on Overpopulation Between the Two World Wars. Rotterdam: Drukkerij Princo, 1970.

Dyfyniad MLA

Overbeek, Johannes. Comparative Thoughts on Overpopulation Between the Two World Wars. Drukkerij Princo, 1970.

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