Cita APA (7a ed.)

Walters, W. H. (1999). Building and Maintaining a Numeric Data Collection.

Cita Chicago Style (17a ed.)

Walters, William H. Building and Maintaining a Numeric Data Collection. 1999.

Cita MLA (9a ed.)

Walters, William H. Building and Maintaining a Numeric Data Collection. 1999.