Karlof, B., & Gilderson , A. (1987). Business strategy in practice. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Karlof, Bengt, agus Alan Gilderson. Business Strategy in Practice. Chichester, England ; New York: John Wiley & Sons, 1987.
Lua MLA (9ú heag.)Karlof, Bengt, agus Alan Gilderson. Business Strategy in Practice. John Wiley & Sons, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.