http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Carboniferous megafaunal and microfaunal zonation in the northern Cordillera of the United States
iii, 29 pages : illustrations (1 folded in pocket) ; 29 cm.
by William J. Sando, Bernard L. Mamet, and J. Thomas Dutro, Jr.
Includes bibliographical references (pages 23-25).
Geological Survey professional paper ; 613-E