ROTHBERG ROBERT R(ED.). (1981). CORPORATE STRATEGY AND PRODUCT INNOVATION (2.). FREE PRESS.
Lua i Stíl Chicago (17ú heag.)ROTHBERG ROBERT R(ED.). CORPORATE STRATEGY AND PRODUCT INNOVATION. 2. LONDON: FREE PRESS, 1981.
Lua MLA (9ú heag.)ROTHBERG ROBERT R(ED.). CORPORATE STRATEGY AND PRODUCT INNOVATION. 2. FREE PRESS, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.