APA Style

Asimov, Isaac. (1991). Why does the moon change shape? (A Gareth Stevens Children's Books ed.). Mexico: G. Stevens Children's Books.

Chicago Style

Asimov, Isaac. Why does the moon change shape?. A Gareth Stevens Children's Books ed. Mexico: G. Stevens Children's Books, 1991. Text.

MLA Style

Asimov, Isaac. Why does the moon change shape?. A Gareth Stevens Children's Books ed. Mexico: G. Stevens Children's Books, 1991. Text.

Turabian Style

Asimov, Isaac. Why does the moon change shape?. A Gareth Stevens Children's Books ed. Mexico: G. Stevens Children's Books, 1991. Print.