G N Collins1. Show Affiliations » 1. Bureau of Plant Industry, U. S. Department of Agriculture.
Abstract
Year: 1917 PMID: 16586733 PMCID: PMC1091253 DOI: 10.1073/pnas.3.5.345
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205