Crawford,Merle. (2013). New Product Management (9th.). Tata McGraw -Hill.
Lua i Stíl Chicago (17ú heag.)Crawford,Merle. New Product Management. 9th. New Delhi: Tata McGraw -Hill, 2013.
Lua MLA (9ú heag.)Crawford,Merle. New Product Management. 9th. Tata McGraw -Hill, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.