APA (7th ed.) Citation

Hungerford, H. R., Bluhm, W. T., Volk, T. L., & Ramsey, J. M. (2005). Essential readings in environmental education (3rd ed.). Stipes Published L.L.C..

Chicago Style (17th ed.) Citation

Hungerford, Harold R., William Theodore Bluhm, Trudi L. Volk, and John M. Ramsey. Essential Readings in Environmental Education. 3rd ed. Champaign, Illinois: Stipes Published L.L.C., 2005.

MLA (8th ed.) Citation

Hungerford, Harold R., et al. Essential Readings in Environmental Education. 3rd ed. Stipes Published L.L.C., 2005.