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41
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42
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43
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44
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45
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46
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47
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48
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49by Ponsioen, J. A. (Johannes Antonius), 1911-Subjects: “...Social change....”
Published 1968
Government Document Book -
50by Cochran, Thomas C. (Thomas Childs), 1902-1999Subjects: “...Social change....”
Published 1972
Book -
51
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52
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53by Rockefeller, John D., III (John Davison), 1906-1978Subjects: “...Social change....”
Published 1973
Book -
54
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55Published 1976Subjects: “...Social change....”
Book -
56
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57
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58
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59Published 1976Subjects: “...Social change....”
Book -
60