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.
Dyfyniad Arddull ChicagoRamírez-Herrera, C., J. J. Vargas-Hernández, and J. López-Upton. Distribution and Conservation of Natural Populations of Pinus Greggii. Instituto de Ecología, A.C, 2005.
Dyfyniad MLARamírez-Herrera, C., et al. Distribution and Conservation of Natural Populations of Pinus Greggii. Instituto de Ecología, A.C, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
