Pope, T A, The reproduction of maps and drawings; a handbook of instructions for the use of government officials and others who prepare maps, plans and other subjects for reproduction in the photographic and lithographic office of the Survey of India. Calcutta, 1905
Lallemand, C, On the deformation resulting from the method of constructing the International Atlas of the World on the scale of 1 to 1 million; translated by J Eccles. Dehra Dun, 1912