Darrow, K., & Pam, R. (1976). Appropriate technology sourcebook: For tools and techniques that use local skills, local resources, and renewable sources of energy (2nd ed.). Volunteers in Asia.
Chicago-viite (17. p.)Darrow, Ken, ja Rick Pam. Appropriate Technology Sourcebook: For Tools and Techniques That Use Local Skills, Local Resources, and Renewable Sources of Energy. 2nd ed. Stanford, Calif: Volunteers in Asia, 1976.
MLA-viite (9. p.)Darrow, Ken, ja Rick Pam. Appropriate Technology Sourcebook: For Tools and Techniques That Use Local Skills, Local Resources, and Renewable Sources of Energy. 2nd ed. Volunteers in Asia, 1976.
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