Ramírez-Herrera, C., Vargas-Hernández, J. J., & López-Upton, J. (2005). Distribution and conservation of natural populations of Pinus greggii. Instituto de Ecología, A.C.
Lua i Stíl Chicago (17ú heag.)Ramírez-Herrera, C., J. J. Vargas-Hernández, agus J. López-Upton. Distribution and Conservation of Natural Populations of Pinus Greggii. Instituto de Ecología, A.C, 2005.
Lua MLA (9ú heag.)Ramírez-Herrera, C., et al. Distribution and Conservation of Natural Populations of Pinus Greggii. Instituto de Ecología, A.C, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
