Hindson, J., Hathway, G., & Howe, J. D. G. F. (1983). Earth roads: A practical guide to earth road construction and maintenance. Intermediate Technology.
Chicago-viite (17. p.)Hindson, Jack, Gordon Hathway, ja J. D. G. F. Howe. Earth Roads: A Practical Guide to Earth Road Construction and Maintenance. London: Intermediate Technology, 1983.
MLA-viite (9. p.)Hindson, Jack, et al. Earth Roads: A Practical Guide to Earth Road Construction and Maintenance. Intermediate Technology, 1983.
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