Cita APA (7th ed.)

Crognale, G. (1999). Environmental management strategies: The 21st century perspective. Prentice Hall PTR.

Cita Chicago (17th ed.)

Crognale, Gabriele. Environmental Management Strategies: The 21st Century Perspective. Upper Saddle River, N.J: Prentice Hall PTR, 1999.

Cita MLA (9th ed.)

Crognale, Gabriele. Environmental Management Strategies: The 21st Century Perspective. Prentice Hall PTR, 1999.