Dyfyniad APA

Piper,Ross. (2013). Animal earth: The amazing diversity of living creatures.

Dyfyniad Arddull Chicago

Piper,Ross. Animal Earth: The Amazing Diversity of Living Creatures. Thames & Hudson, London, 2013.

Dyfyniad MLA

Piper,Ross. Animal Earth: The Amazing Diversity of Living Creatures. 2013.

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