Dyfyniad APA

Blij , H. D. (2012). Why Geography Matters: More Than Ever. OUP.

Dyfyniad Arddull Chicago

Blij , Harm De. Why Geography Matters: More Than Ever. UK: OUP, 2012.

Dyfyniad MLA

Blij , Harm De. Why Geography Matters: More Than Ever. OUP, 2012.

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