Sumption, M. R., & Engstrom, Y. (1966). School-community relations: A new approach. McGraw-Hill.
Citace podle Chicago (17th ed.)Sumption, Merle Richard, a Yvonne Engstrom. School-community Relations: A New Approach. New York: McGraw-Hill, 1966.
Citace podle MLA (9th ed.)Sumption, Merle Richard, a Yvonne Engstrom. School-community Relations: A New Approach. McGraw-Hill, 1966.
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