Chipko Movement 18 Nisan 2023 tarihinde Wayback Machine sitesinde arşivlendi. The Future of the Environment: The Social Dimensions of Conservation and Ecological Alternatives, by David C. Pitt. Published by Routledge, 1988. 0-415-00455-1. Page 112.
Chipko Movement 18 Nisan 2023 tarihinde Wayback Machine sitesinde arşivlendi. The Future of the Environment: The Social Dimensions of Conservation and Ecological Alternatives, by David C. Pitt. Published by Routledge, 1988. 0-415-00455-1. Page 112.