Darrow, K., Keller, K., & Pam, R. (1981). Appropriate technology sourcebook. Volunteers in Asia.
Lua i Stíl Chicago (17ú heag.)Darrow, Ken, Kent Keller, agus Rick Pam. Appropriate Technology Sourcebook. Stanford, Calif.: Volunteers in Asia, 1981.
Lua MLA (8ú heag.)Darrow, Ken, et al. Appropriate Technology Sourcebook. Volunteers in Asia, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.