Sinclair, A. (1984). A guide to appropriate technology institutions. Intermediate Technology Development Group.
Lua i Stíl Chicago (17ú heag.)Sinclair, Angela. A Guide to Appropriate Technology Institutions. London: Intermediate Technology Development Group, 1984.
Lua MLA (9ú heag.)Sinclair, Angela. A Guide to Appropriate Technology Institutions. Intermediate Technology Development Group, 1984.
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