APA (7th ed.) Citation

Strang, R. (1949). An introduction to child study (Rev. ed.). MacMillan.

Chicago Style (17th ed.) Citation

Strang, Ruth. An Introduction to Child Study. Rev. ed. New York, NY: MacMillan, 1949.

MLA (9th ed.) Citation

Strang, Ruth. An Introduction to Child Study. Rev. ed. MacMillan, 1949.