APA (7th ed.) Citation

Brown, J. D., & Lock, R. N. (1961). Manuval of library economy. Grafton.

Chicago Style (17th ed.) Citation

Brown, James Duff, and R. Northwood Lock. Manuval of Library Economy. London: Grafton, 1961.

MLA (9th ed.) Citation

Brown, James Duff, and R. Northwood Lock. Manuval of Library Economy. Grafton, 1961.