This out-of-print text was digitized and graciously donated for use in the Sophie Digital Library by The Gerritsen Collection of Aletta H. Jacobs, ProQuest LLC. The digital copyright remain with ProQuest, and permission to use this text for commercial use, or redistribution, must be sought from them.
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Source: The Gerritsen Collection of Aletta H. Jacobs, ProQuest LLC
Record URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:gerritsen&rft_dat=xri:gerritsen:bookrec:Gerritsen-G2092