Cita APA

Sam, P. A., & Sam, P. A. (1999). International environmental consulting practice: How and where to take advantage of global opportunities. New York: J. Willey.

Citación estilo Chicago

Sam, Peter A., y Peter A. Sam. International Environmental Consulting Practice: How and Where to Take Advantage of Global Opportunities. New York: J. Willey, 1999.

Cita MLA

Sam, Peter A., y Peter A. Sam. International Environmental Consulting Practice: How and Where to Take Advantage of Global Opportunities. New York: J. Willey, 1999.