Bunnell, S. H. (1911). Cost-keeping for manufactoring plants. D. Appleton and company.
Lua i Stíl Chicago (17ú heag.)Bunnell, Sterling Haight. Cost-keeping for Manufactoring Plants. New York: D. Appleton and company, 1911.
Lua MLA (8ú heag.)Bunnell, Sterling Haight. Cost-keeping for Manufactoring Plants. D. Appleton and company, 1911.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.