Ross, J. E. R. (1930). Triangulation closure in the Maritime Provinces: Latitude and longitude nomograms. Department of the Interior.
芝加哥风格引文Ross, J E R. Triangulation Closure in the Maritime Provinces: Latitude and Longitude Nomograms. Ottawa, Canada: Department of the Interior, 1930.
MLA引文Ross, J E R. Triangulation Closure in the Maritime Provinces: Latitude and Longitude Nomograms. Department of the Interior, 1930.
警告:这些引文格式不一定是100%准确.