Cita APA (7a ed.)

Shera, J. H., & Egan, M. E. (1956). The Classified Catalog: Basic Principles and Practices. American Library Association.

Cita Chicago Style (17a ed.)

Shera, Jesse Hauk, y Margaret E. Egan. The Classified Catalog: Basic Principles and Practices. Chicago: American Library Association, 1956.

Cita MLA (9a ed.)

Shera, Jesse Hauk, y Margaret E. Egan. The Classified Catalog: Basic Principles and Practices. American Library Association, 1956.