APA (7th ed.) Citation

Maass, J. (1972). Who Invested Dewey's Classification.

Chicago Style (17th ed.) Citation

Maass, John. Who Invested Dewey's Classification. 1972.

MLA (9th ed.) Citation

Maass, John. Who Invested Dewey's Classification. 1972.

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