APA
Robert S. Thompson ; Katherine H. Anderson ; Patrick J. Bartlein ; Sharon A. Smith, . (2000). Atlas of relations between Climatic Parameters and Distributions of important Trees and Shrubs in Noth America: Additional Conifers, Hadwoods and Monocots. Virginia: U.S. Geological Survey.
Chicago
Robert S. Thompson ; Katherine H. Anderson ; Patrick J. Bartlein ; Sharon A. Smith, . 2000. Atlas of relations between Climatic Parameters and Distributions of important Trees and Shrubs in Noth America: Additional Conifers, Hadwoods and Monocots. Virginia: U.S. Geological Survey.
Harvard
Robert S. Thompson ; Katherine H. Anderson ; Patrick J. Bartlein ; Sharon A. Smith, . (2000). Atlas of relations between Climatic Parameters and Distributions of important Trees and Shrubs in Noth America: Additional Conifers, Hadwoods and Monocots. Virginia: U.S. Geological Survey.
MLA
Robert S. Thompson ; Katherine H. Anderson ; Patrick J. Bartlein ; Sharon A. Smith, . Atlas of relations between Climatic Parameters and Distributions of important Trees and Shrubs in Noth America: Additional Conifers, Hadwoods and Monocots. Virginia: U.S. Geological Survey. 2000.