APA Style
York, Penelope. (2002).
Earth .
United Kingdom:
Dorling Kindersley.
Chicago Style
York, Penelope.
Earth.
United Kingdom:
Dorling Kindersley,
2002.
.
MLA Style
York, Penelope.
Earth.
United Kingdom:
Dorling Kindersley,
2002.
.
Turabian Style
York, Penelope.
Earth.
United Kingdom:
Dorling Kindersley,
2002.
.