Broster, E. J. (1972). Management statistics. Longman.
Lua i Stíl Chicago (17ú heag.)Broster, E. J. Management Statistics. London: Longman, 1972.
Lua MLA (9ú heag.)Broster, E. J. Management Statistics. Longman, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.