APA (7th ed.) Citation

Todd, V. E., & Heffernan, H. (1970). The years before school: Guiding preschool children (2nd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Todd, Vivian Edmiston, and Helen Heffernan. The Years Before School: Guiding Preschool Children. 2nd ed. London: Macmillan, 1970.

MLA (9th ed.) Citation

Todd, Vivian Edmiston, and Helen Heffernan. The Years Before School: Guiding Preschool Children. 2nd ed. Macmillan, 1970.