Coggins, G. C., & Wilkinson, C. F. (1981). Federal public land and resources law. Foundation Press.
Lua i Stíl Chicago (17ú heag.)Coggins, George Cameron, agus Charles F. Wilkinson. Federal Public Land and Resources Law. Mineola, N.Y: Foundation Press, 1981.
Lua MLA (9ú heag.)Coggins, George Cameron, agus Charles F. Wilkinson. Federal Public Land and Resources Law. Foundation Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.