APA (7th ed.) Citation

Ridenour, N., & Johnson, I. (1949). Some special problems of children aged 2 to 5 years (2nd ed.). National Association for Mental Health.

Chicago Style (17th ed.) Citation

Ridenour, Nina, and Isabel Johnson. Some Special Problems of Children Aged 2 to 5 Years. 2nd ed. New York: National Association for Mental Health, 1949.

MLA (8th ed.) Citation

Ridenour, Nina, and Isabel Johnson. Some Special Problems of Children Aged 2 to 5 Years. 2nd ed. National Association for Mental Health, 1949.