Bateman, I. J., & Willis, K. G. (1999). Valuing environmental preferences: Theory and practice of the contingent valuation method in the US, EU, and developing countries. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBateman, Ian J., और Kenneth George Willis. Valuing Environmental Preferences: Theory and Practice of the Contingent Valuation Method in the US, EU, and Developing Countries. Oxford: Oxford University Press, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBateman, Ian J., और Kenneth George Willis. Valuing Environmental Preferences: Theory and Practice of the Contingent Valuation Method in the US, EU, and Developing Countries. Oxford University Press, 1999.
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