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		An introduction to the primary health care approach in developing countries : a review with selected annotated references / by Gill Walt and Patrick Vaughan. by Walt, Gill \| Vaughan, J. Patrick \| Ross Institute of Tropical Hygiene. Series: Ross Institute of Tropical Hygiene publication ; no. 13Material type: Text; Format: print Publication details: London : London School of Hygiene and Tropical Medicine, 1981Availability: Items available for loan: WHO HQ (1)Call number: ZW 84.6 81WA. Place hold Add to cart (remove)
		Small excreta disposal systems / by Richard Feachem and Sandy Cairncross. by Feachem, Richard G. A \| Cairncross, Sandy \| Ross Institute of Tropical Hygiene. Series: Ross Institute of Tropical Hygiene publication ; no. 8Material type: Text; Format: print Publication details: London : Ross Institute of Tropical Hygiene, London School of Hygiene and Tropical Medicine, 1978Availability: Items available for loan: WHO HQ (1)Call number: WA 830 78FE. Place hold Add to cart (remove)
		Small water supplies / by Sandy Cairncross and Richard Feachem. by Cairncross, Sandy \| Feachem, Richard G. A \| Ross Institute of Tropical Hygiene. Series: Ross Institute of Tropical Hygiene publication ; no. 10Material type: Text; Format: print Publication details: London : Ross Institute of Tropical Hygiene, London School of Hygiene and Tropical Medicine, 1978Availability: Items available for loan: WHO HQ (1)Call number: WA 675 78CA. Place hold Add to cart (remove)

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