Ocran, E. B. (1973). Outline History of Classification: An Essay.
Cita Chicago Style (17a ed.)Ocran, Emanuel Benjamin. Outline History of Classification: An Essay. 1973.
Cita MLA (9a ed.)Ocran, Emanuel Benjamin. Outline History of Classification: An Essay. 1973.
Precaución: Estas citas no son 100% exactas.