Sumption, M. R., & Engstrom, Y. (1966). School-community relations: A new approach. McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Sumption, Merle Richard, e Yvonne Engstrom. School-community Relations: A New Approach. New York: McGraw-Hill, 1966.
Citatione MLA (9a ed.)Sumption, Merle Richard, e Yvonne Engstrom. School-community Relations: A New Approach. McGraw-Hill, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.