Müeller, J. (1970). Labour-intensive methods in low-cost road construction: A case study. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Müeller, J. Labour-intensive Methods in Low-cost Road Construction: A Case Study. International Labour Organization, 1970.
Citatione MLA (9a ed.)Müeller, J. Labour-intensive Methods in Low-cost Road Construction: A Case Study. International Labour Organization, 1970.
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