Cita APA (7a ed.)
Friedman, F. B. (2006). Practical Guide to Environmental Management (10ʻ Edicin̤.). Environmental Law Institute.
Cita Chicago Style (17a ed.)
Friedman, Frank B. Practical Guide to Environmental Management. 10ʻ Edicin̤. Washington DC: Environmental Law Institute, 2006.
Cita MLA (9a ed.)
Friedman, Frank B. Practical Guide to Environmental Management. 10ʻ Edicin̤. Environmental Law Institute, 2006.
Precaución: Estas citas no son 100% exactas.