Welfare, H. (2022). General William Roy, 1726-1790: Father of the Ordnance Survey. Edinburgh University Press.
芝加哥风格引文Welfare, Humphrey. General William Roy, 1726-1790: Father of the Ordnance Survey. Edinburgh: Edinburgh University Press, 2022.
MLA引文Welfare, Humphrey. General William Roy, 1726-1790: Father of the Ordnance Survey. Edinburgh University Press, 2022.
警告：这些引文格式不一定是100％准确.