"Replaces the booklet 'A guide to southern pine seed sources' written by Clark Lantz and John Kraus (1987)"--Foreword.
"August 2001."
Includes bibliographical references.
Mode of access: Internet from the SRS web site. Address as of 5/6/05: http://www.srs.fs.usda.gov/pubs/gtr/gtr%5Fsrs044.pdf; current access is available via PURL.