Bhatnagar, M. (2008). Payment for environmental services. ICFAI University Press.
Lua i Stíl Chicago (17ú heag.)Bhatnagar, Meenu. Payment for Environmental Services. Hyderabad: ICFAI University Press, 2008.
Lua MLA (9ú heag.)Bhatnagar, Meenu. Payment for Environmental Services. ICFAI University Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.