http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Qualification of fuels, lubricants and additives for aircraft engines
Cancels AC number 20-24A, effective April 14, 1967.
Title from PDF file caption (viewed Sept. 24, 2008).
Mode of access: Internet at the FAA web site. Address as of 9/24/08: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/524e2c50bf51b5f7862569ce0075054b/$FILE/ac20-24b.pdf ; current access available via PURL.