Cita APA (7a ed.)

Brown, J. D., & Sayers Berwick, W. C. (1920). Manual of library economy. Grafton & Co..

Cita Chicago Style (17a ed.)

Brown, James Duff, y W. C. Sayers Berwick. Manual of Library Economy. London: Grafton & Co., 1920.

Cita MLA (9a ed.)

Brown, James Duff, y W. C. Sayers Berwick. Manual of Library Economy. Grafton & Co., 1920.