| Literature DB >> 14331181 |
Abstract
Entities:
Keywords: BIOLOGY; CIVILIZATION; COMMUNICATION; CULTURE; POPULATION; SCIENCE
Mesh:
Year: 1965 PMID: 14331181 DOI: 10.1126/science.149.3684.607
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728