Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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