Intermediate Technology Development Group, Gater, A., Meller, T., & Warsany, J. (1968). Tools for progress: Guide to equipment and materials for small-scale development available in the United Kingdom. Intermediate Technology Development Group.
Citace podle Chicago (17th ed.)Intermediate Technology Development Group, Anthony Gater, Tim Meller, a John Warsany. Tools for Progress: Guide to Equipment and Materials for Small-scale Development Available in the United Kingdom. London: Intermediate Technology Development Group, 1968.
Citace podle MLA (8th ed.)Intermediate Technology Development Group, et al. Tools for Progress: Guide to Equipment and Materials for Small-scale Development Available in the United Kingdom. Intermediate Technology Development Group, 1968.
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