APA (7th ed.) Citation

Ocran, E. B. (1973). Outline History of Classification: An Essay.

Chicago Style (17th ed.) Citation

Ocran, Emanuel Benjamin. Outline History of Classification: An Essay. 1973.

MLA (9th ed.) Citation

Ocran, Emanuel Benjamin. Outline History of Classification: An Essay. 1973.

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