Speth, G. J. (2005). Global environmental challenges: Transitions to a sustainable world. Orient Longman.
Citación estilo ChicagoSpeth, Gustave James. Global Environmental Challenges: Transitions to a Sustainable World. Hyderabad: Orient Longman, 2005.
Cita MLASpeth, Gustave James. Global Environmental Challenges: Transitions to a Sustainable World. Orient Longman, 2005.
Warning: These citations may not always be 100% accurate.