Rybezynski, W., & Polprasert, C. (1978). Low-cost technology options for sanitation: A state-of-the-art review and annotated bibliography. International Development Research Centre.
Chicago-viite (17. p.)Rybezynski, Witold, ja Chongrak Polprasert. Low-cost Technology Options for Sanitation: A State-of-the-art Review and Annotated Bibliography. Ottawa: International Development Research Centre, 1978.
MLA-viite (9. p.)Rybezynski, Witold, ja Chongrak Polprasert. Low-cost Technology Options for Sanitation: A State-of-the-art Review and Annotated Bibliography. International Development Research Centre, 1978.
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