Cita APA (7a ed.)

Trueswell, R. L. (1969). Some Behavioral Patterns of Library Users: The 80/20 Rule.

Cita Chicago Style (17a ed.)

Trueswell, Richard L. Some Behavioral Patterns of Library Users: The 80/20 Rule. 1969.

Cita MLA (9a ed.)

Trueswell, Richard L. Some Behavioral Patterns of Library Users: The 80/20 Rule. 1969.