Title from PDF file caption (viewed Dec. 29, 2008).
Mode of access: Internet at the FAA web site. Address as of 12/29/08: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/8bc6e015cc5b3cb6862569b9007090de/$FILE/ATTD20XX/AC60-11c.pdf; current access available via PURL.