Conrad, J. M., & Clark, C. W. (1987). Natural resource economics: Notes and problems. Cambridge [Cambridgeshire] ; New York: Cambridge University Press.
Trích dẫn kiểu ChicagoConrad, Jon M., và Colin W. Clark. Natural Resource Economics: Notes and Problems. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1987.
ציטוט MLAConrad, Jon M., và Colin W. Clark. Natural Resource Economics: Notes and Problems. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1987.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.