APA način citiranja (7. izdanje)

National Science Teachers Association & ebrary, Inc. (2001). Dig in!: Hands-on soil investigations. NSTA Press.

Čikaški stil citiranja (17. izdanje)

National Science Teachers Association i Inc ebrary. Dig in!: Hands-on Soil Investigations. Arlington, Va.: NSTA Press, 2001.

MLA način citiranja (9. izdanje)

National Science Teachers Association i Inc ebrary. Dig in!: Hands-on Soil Investigations. NSTA Press, 2001.