Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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

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