Sarkar, S. (1999). Eco-socialism or eco-capitalism? a critical analysis of humanity's fundamental choices. Orient Longman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSarkar, Saral. Eco-socialism or Eco-capitalism? a Critical Analysis of Humanity's Fundamental Choices. Orient Longman, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSarkar, Saral. Eco-socialism or Eco-capitalism? a Critical Analysis of Humanity's Fundamental Choices. Orient Longman, 1999.
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