TY - BOOK TI - In the field : the bulletin of the Field Museum of Natural History VL - v.61:no.6 (1990:Nov.-Dec.) UR - https://www.biodiversitylibrary.org/item/124861 PB - Field Museum of Natural History CY - Chicago, IL PY - 1990 SN - 1051-4546 N1 - Title from caption. AU - Field Museum of Natural History. KW - Field Museum of Natural History KW - Natural history KW - Periodicals ER -