Dyfyniad APA

Centre for Educational Research and Innovation, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). Demography. OECD.

Dyfyniad Arddull Chicago

Centre for Educational Research and Innovation, Organisation for Economic Co-operation and Development, and ProQuest (Firm). Demography. Paris: OECD, 2008.

Dyfyniad MLA

Centre for Educational Research and Innovation, et al. Demography. OECD, 2008.

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