APA

Hirschmann، Kris, . (2004). fossils. New York: scholastic inc.

Chicago

Hirschmann، Kris, . 2004. fossils. New York: scholastic inc.

Harvard

Hirschmann، Kris, . (2004). fossils. New York: scholastic inc.

MLA

Hirschmann، Kris, . fossils. New York: scholastic inc. 2004.