Gutierrez, P. R. (1990). Diamictites in the Agua Colorada Formation (northwestern Argentina): New evidence of Carboniferous glaciation in South America.
Cita Chicago Style (17a ed.)Gutierrez, Pedro Raúl. Diamictites in the Agua Colorada Formation (northwestern Argentina): New Evidence of Carboniferous Glaciation in South America. 1990.
Cita MLA (8a ed.)Gutierrez, Pedro Raúl. Diamictites in the Agua Colorada Formation (northwestern Argentina): New Evidence of Carboniferous Glaciation in South America. 1990.
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