APA استشهاد

Brown, J. D. (1961). Manual of library economy rev by R Northwood Lock (7th ed.).

استشهاد بنمط شيكاغو

Brown, James Duff. Manual of Library Economy Rev by R Northwood Lock. 7th ed. 1961.

MLA استشهاد

Brown, James Duff. Manual of Library Economy Rev by R Northwood Lock. 7th ed. 1961.