Title from title screen (viewed Oct. 22, 2008). "31 Oct. 97." "The information given in this pamphlet replaces the Network Analysis Systems Guide dated 31 August 1986"--Foreword.
Technical Details:
Mode of access: Internet from the USACE web site. Address as of 10/22/2008: http://www.usace.army.mil/publications/eng-pamphlets/ep415-1-4/entire.pdf; current access available via PURL.