Melchor, R. N. (2009). Bird tracks preserved in fluvial channel facies of the Río Negro Formation (Neogene), La Pampa Province, Argentina. Web
Citación estilo ChicagoMelchor, Ricardo Nestor. Bird Tracks Preserved in Fluvial Channel Facies of the Río Negro Formation (Neogene), La Pampa Province, Argentina. 2009.
Cita MLAMelchor, Ricardo Nestor. Bird Tracks Preserved in Fluvial Channel Facies of the Río Negro Formation (Neogene), La Pampa Province, Argentina. 2009.
Precaución: Estas citas no son 100% exactas.