Williams, C. G. (2009). Conifer reproductive biology. Springer Netherlands.
Lua i Stíl Chicago (17ú heag.)Williams, Claire G. Conifer Reproductive Biology. Dordrecht: Springer Netherlands, 2009.
Lua MLA (8ú heag.)Williams, Claire G. Conifer Reproductive Biology. Springer Netherlands, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.