Conrad, J. M. (1999). Natural resource economics: Notes and problems. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)Conrad, John M. Natural Resource Economics: Notes and Problems. Cambridge: Cambridge University Press, 1999.
Citatione MLA (9a ed.)Conrad, John M. Natural Resource Economics: Notes and Problems. Cambridge University Press, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.