APA (7th ed.) Citation

Downs, R. B. (1978). Friedrich Froebel. Twayne Publishers.

Chicago Style (17th ed.) Citation

Downs, Robert B. Friedrich Froebel. Boston: Twayne Publishers, 1978.

MLA (9th ed.) Citation

Downs, Robert B. Friedrich Froebel. Twayne Publishers, 1978.

Warning: These citations may not always be 100% accurate.