Forsberg, R. (1972). Resources devoted to military research and development: An intellectual comparison. Almquist & Wiksell.
Lua i Stíl Chicago (17ú heag.)Forsberg, Randall. Resources Devoted to Military Research and Development: An Intellectual Comparison. Stockholm: Almquist & Wiksell, 1972.
Lua MLA (9ú heag.)Forsberg, Randall. Resources Devoted to Military Research and Development: An Intellectual Comparison. Almquist & Wiksell, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.