Randall, A. (1987). Resource economics: An economic approach to natural resource and environmental policy (2nd ed.). John Willey & Sons.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRandall, Alan. Resource Economics: An Economic Approach to Natural Resource and Environmental Policy. 2nd ed. New York: John Willey & Sons, 1987.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিRandall, Alan. Resource Economics: An Economic Approach to Natural Resource and Environmental Policy. 2nd ed. John Willey & Sons, 1987.