Gilligan, C. (2003). Strategic Marketing Planning. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Gilligan, Colin. Strategic Marketing Planning. Chichester England: John Wiley & Sons, 2003.
Lua MLA (9ú heag.)Gilligan, Colin. Strategic Marketing Planning. John Wiley & Sons, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.