Vegetational history of a site in the central Amazon basin derived from phytolith and charcoal records from natural soilsv. 45No. 2ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS202–209
Piperno, Dolores R. and Becker, P. 1996. "Vegetational history of a site in the central Amazon basin derived from phytolith and charcoal records from natural soils." Quaternary Research, 45, (2) 202–209.