Dyfyniad APA

Ángel, F. (2010). City, Nature and Environmental Knowledge.

Dyfyniad Arddull Chicago

Ángel, Felipe. City, Nature and Environmental Knowledge. 2010.

Dyfyniad MLA

Ángel, Felipe. City, Nature and Environmental Knowledge. 2010.

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