http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Molt and aging criteria for four North American grassland passerines
1 online resource (vii, 19 pages) : illustrations (some color).
Peter Pyle, Stephanie L. Jones, Janet M. Ruth.
Title from title screen (viewed Dec. 18, 2012).
Includes bibliographical references (page 18).
Biological technical publication ; BTP-R 6011-2008