Cita APA (7a ed.)

Spellman, F. R., & Stoudt, M. L. (2013). Environmental science: Principles and practices. Scarecrow Press, Inc..

Cita Chicago Style (17a ed.)

Spellman, Frank R., y Melissa L. Stoudt. Environmental Science: Principles and Practices. Lanham, MD: Scarecrow Press, Inc., 2013.

Cita MLA (8a ed.)

Spellman, Frank R., y Melissa L. Stoudt. Environmental Science: Principles and Practices. Scarecrow Press, Inc., 2013.