Lovejoy, K. C., Tena Bishop, Harley Leland, C. B. Wadleigh, Lorenzo. F. Kinney Jr., C. C. Lang, Laurel Sabrosky, and Edward William Aiton. (1948) 1948. “A Study of How to Get Parent Cooperation in 4-H Club Work; Maine, Massachusetts, New Hampshire, and Ohio, 1947”. 450. Extension Service Circular. United States. Extension Service. http://www.worldcat.org/oclc/741477134.
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