Weinhold, F., & Landis, C. R. (2005). Valency and bonding: A natural bond orbital donor-acceptor perspective. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Weinhold, Frank, agus Clark R. Landis. Valency and Bonding: A Natural Bond Orbital Donor-acceptor Perspective. New York: Cambridge University Press, 2005.
Lua MLA (8ú heag.)Weinhold, Frank, agus Clark R. Landis. Valency and Bonding: A Natural Bond Orbital Donor-acceptor Perspective. Cambridge University Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.