@book{ Solr-11550405, title = {Land bridges : ancient environments, plant migrations, and New World connections}, author = {Graham, Alan, 1934-}, address = {Chicago}, publisher = {The University of Chicago Press}, year = {2018}, pages = {310}, url = {https://ebookcentral.proquest.com/lib/uchicago/detail.action?docID=5087163} url = {https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&AN=1647468} }