National Council on the Aging & Sheppard, H. L. (1970). Toward an industrial gerontology: An introduction to a new field of applied research and service. Schenkman Pub.
Citace podle Chicago (17th ed.)National Council on the Aging a Harold L. Sheppard. Toward an Industrial Gerontology: An Introduction to a New Field of Applied Research and Service. Cambridge, Mass: Schenkman Pub, 1970.
Citace podle MLA (9th ed.)National Council on the Aging a Harold L. Sheppard. Toward an Industrial Gerontology: An Introduction to a New Field of Applied Research and Service. Schenkman Pub, 1970.
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