Appropriate Technology Sourcebook/Rays of Hope

Bibliographic Information:

Hayes, D. (1977). Rays of Hope: The Transition to a Post-Petroleum World. New York: W. W. Norton & Company, Inc.

Currently all information is available online from either of the following two sites:

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Keywords	appropriate technology
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Language	English (en)
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Created	January 26, 2010 by John Hamilton
Last edit	January 27, 2026 by StandardWikitext bot
Cite as	"Appropriate Technology Sourcebook/Rays of Hope". Appropedia. 2010–2026. Retrieved June 4, 2026.
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