APA

Collins M., . (1999). The Smithsonian Institution =. USA: Children's Press.

Chicago

Collins M, . 1999. The Smithsonian Institution =. USA: Children's Press.

Harvard

Collins M., . (1999). The Smithsonian Institution =. USA: Children's Press.

MLA

Collins M, . The Smithsonian Institution =. USA: Children's Press. 1999.