Dyfyniad APA

Brown,Sophie, & ...[et.al.]. (2008). Pocket world in figures 2009 edition. Profile books.

Dyfyniad Arddull Chicago

Brown,Sophie, and ...[et.al.]. Pocket World in Figures 2009 Edition. London: Profile books, 2008.

Dyfyniad MLA

Brown,Sophie, and ...[et.al.]. Pocket World in Figures 2009 Edition. Profile books, 2008.

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