Dyfyniad APA

Gómez, V. (2013). Birthspacing and fertility decline in Costa Rica.

Dyfyniad Arddull Chicago

Gómez, Víctor. Birthspacing and Fertility Decline in Costa Rica. 2013.

Dyfyniad MLA

Gómez, Víctor. Birthspacing and Fertility Decline in Costa Rica. 2013.

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