Richards, Ellen H. 1842-1911.
Euthenics, the science of controllable environment : a plea for better living conditions as a first step toward higher human efficiency, by Ellen H. Richards. - 2nd ed. - Boston, Whitcomb & Barrows, 1910. - xii, 175 p. ; 19 cm.
10015213
Euthenics.
HN64 / .R545
136.2 / RIE
Euthenics, the science of controllable environment : a plea for better living conditions as a first step toward higher human efficiency, by Ellen H. Richards. - 2nd ed. - Boston, Whitcomb & Barrows, 1910. - xii, 175 p. ; 19 cm.
10015213
Euthenics.
HN64 / .R545
136.2 / RIE