APA-Zitierstil (7. Ausg.)

Richardson, E. C. (1930). Classification, theoretical and practical (3rd ed.). Shoe String Press.

Chicago-Zitierstil (17. Ausg.)

Richardson, Ernest Cushing. Classification, Theoretical and Practical. 3rd ed. Hamden, Conn: Shoe String Press, 1930.

MLA-Zitierstil (9. Ausg.)

Richardson, Ernest Cushing. Classification, Theoretical and Practical. 3rd ed. Shoe String Press, 1930.