Gaya APA

Holes. (1998). New York: Scholastic Inc..

Gaya Chicago

Holes. . New York: Scholastic Inc., 1998. Buku.

Gaya MLA

Holes. . New York: Scholastic Inc., 1998. Buku.

Gaya Turabian

Holes. New York: Scholastic Inc., 1998. Buku.