Bhatnagar, M. (2008). Payment for environmental services. ICFAI University Press.
Chicago Style aipamenaBhatnagar, Meenu. Payment for Environmental Services. Hyderabad: ICFAI University Press, 2008.
MLA aipamenaBhatnagar, Meenu. Payment for Environmental Services. ICFAI University Press, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.