APA Edition Citation

Richardson, E. C. (1964). Classification: Theoretical and practical (3rd ed.).

Chicago Edition Citation

Richardson, Ernest Cushing. Classification: Theoretical and Practical. 3rd ed. 1964.

MLA Edition Citation

Richardson, Ernest Cushing. Classification: Theoretical and Practical. 3rd ed. 1964.

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