O'Brien, L. J. (1985). NAD 83, redefinition and readjustment of North American Geodetic Networks: (a cooperative international project). Geodetic Survey of Canada.
Chicago Style (17th ed.) CitationO'Brien, L. J. NAD 83, Redefinition and Readjustment of North American Geodetic Networks: (a Cooperative International Project). Ottawa: Geodetic Survey of Canada, 1985.
MLA (9th ed.) CitationO'Brien, L. J. NAD 83, Redefinition and Readjustment of North American Geodetic Networks: (a Cooperative International Project). Geodetic Survey of Canada, 1985.
Warning: These citations may not always be 100% accurate.