1. C. A. Hart Air Photography Applied to Surveying 1940
2. Lyle G. Trorey Aerial Mapping and Photogrammetry 1952
3. G. H. Q., Middle East 1943 This is reprinted and is-more accessible in The Admiralty Manual of Hydrographic Surveying
4. M. Hotine Professional Papers of the Air Survey Committee No. 6 , War Office 1929
5. The Rand Method of Heighting from Near Vertical Air Photographs;Crone;Empire Survey Review,Oct. 1951