Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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