http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Determination of the [delta] (¹⁵N/¹⁴N) of nitrate in solids, RSIL Lab Code 2894
Methods of the Reston Stable Isotope Laboratory
Title from PDF title screen (viewed on Aug. 16, 2007).
"Chapter 12 of Book 10, Methods of the Reston Stable Isotope Laboratory, Section C, Stable isotope-ratio methods, edited by Kinga Revesz and Tyler B. Coplen."
Mode of access: Internet from the USGS web site. Address as of 8/21/07: http://pubs.usgs.gov/tm/2006/tm10c12/pdf/tm10c12.pdf; current access via PURL.
Includes bibliographical references (page 12).