APA
Todd V. E. &. H. H., . (1977). The years before school : guiding preschool children. Macmillan, New york: .
Chicago
Todd Vivian Edmiston & Heffernan Helen, . 1977. The years before school : guiding preschool children. Macmillan, New york: .
Harvard
Todd V. E. &. H. H., . (1977). The years before school : guiding preschool children. Macmillan, New york: .
MLA
Todd Vivian Edmiston & Heffernan Helen, . The years before school : guiding preschool children. Macmillan, New york: . 1977.