Ellen H. Richards

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Euthenics the science of controllable environment
Ellen H. Richards

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The Cost of Shelter
Richards, Ellen H

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The Chocolate Plant, Theobroma Cacao and Its Products
Richards, Ellen H.

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The Rumford Kitchen Leaflets (Classic Reprint)
Ellen H. Richards

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Euthenics, the Science of Controllable Environment: A Plea for Better Living Conditions as A First Step Toward Higher Human Efficiency
Richards, Ellen Henrietta Swallow

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First Lessons in Food and Diet
Richards, Ellen Henrietta

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Air, Water, and Food From a Sanitary Standpoint

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The Cost of Cleanness
Richards, Ellen Henrietta

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