Development Centre Studies & Jequier, N. (1979). Appropriate Technology Directori: наукове видання.
Dyfyniad Arddull ChicagoDevelopment Centre Studies and Nicolas Jequier. Appropriate Technology Directori: наукове видання. 1979.
Dyfyniad MLADevelopment Centre Studies and Nicolas Jequier. Appropriate Technology Directori: наукове видання. 1979.
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