Development Centre Studies & Jequier, N. (1979). Appropriate Technology Directori: наукове видання.
Cita Chicago (17th ed.)Development Centre Studies i Nicolas Jequier. Appropriate Technology Directori: наукове видання. 1979.
Cita MLA (9th ed.)Development Centre Studies i Nicolas Jequier. Appropriate Technology Directori: наукове видання. 1979.
Atenció: Aquestes cites poden no estar 100% correctes.