APA (7th ed.) Citation

Chapman, J. C., & Chapman, D. R. (1921). Trade tests: The scientific measurement of trade proficiency,. H. Holt and Company.

Chicago Style (17th ed.) Citation

Chapman, J. Crosby, and Daisy Rogers Chapman. Trade Tests: The Scientific Measurement of Trade Proficiency,. New York: H. Holt and Company, 1921.

MLA (9th ed.) Citation

Chapman, J. Crosby, and Daisy Rogers Chapman. Trade Tests: The Scientific Measurement of Trade Proficiency,. H. Holt and Company, 1921.