APA引文

Ocran, E. B. (1974). Outline history of classification: An essay. Educational Resources Information Center.

Chicago Style (17th ed.) Citation

Ocran, Emanuel Benjamin. Outline History of Classification: An Essay. Washington, D. C.: Educational Resources Information Center, 1974.

MLA引文

Ocran, Emanuel Benjamin. Outline History of Classification: An Essay. Educational Resources Information Center, 1974.