"9/27/04." Title from PDF file caption (viewed Dec. 10, 2008).
Technical Details:
Mode of access: Internet at the FAA web site. Address as of 12/10/08: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/59f49483b9998aa186256f25006d98c5/$FILE/AC33-19-1.pdf; current access available via PURL.