Palacios Chavez, R., & Rzedowski, J. (1993). Palynological study of the fossil floras of the Lower Miocene and early Middle Miocene of the Pichucalco region, Chiapas, Mexico. Instituto de Ecología, A.C.
Dyfyniad Arddull ChicagoPalacios Chavez, Rodolfo, and Jerzy Rzedowski. Palynological Study of the Fossil Floras of the Lower Miocene and Early Middle Miocene of the Pichucalco Region, Chiapas, Mexico. Instituto de Ecología, A.C, 1993.
Dyfyniad MLAPalacios Chavez, Rodolfo, and Jerzy Rzedowski. Palynological Study of the Fossil Floras of the Lower Miocene and Early Middle Miocene of the Pichucalco Region, Chiapas, Mexico. Instituto de Ecología, A.C, 1993.