Díaz Martínez, E., Iannuzzi, R., Vieira, C. E. L., Guerra-Sommer, M., & Grader, G. W. (2004). Permian plants from the Chutani Formation (Titicaca Group, Northern Altiplano of Bolivia): I. Genera Pecopteris and Asterotheca.
Chicago Style CitationDíaz Martínez, Enrique, Roberto Iannuzzi, Carlos E. L. Vieira, Margot Guerra-Sommer, and George W. Grader. Permian Plants From the Chutani Formation (Titicaca Group, Northern Altiplano of Bolivia): I. Genera Pecopteris and Asterotheca. 2004.
MLA CitationDíaz Martínez, Enrique, et al. Permian Plants From the Chutani Formation (Titicaca Group, Northern Altiplano of Bolivia): I. Genera Pecopteris and Asterotheca. 2004.
Warning: These citations may not always be 100% accurate.