Training Memorandum. no. 16. Royal Engineers. Snow and Mountain Warfare. - Engeland Voorschrift 26/GS Publications/1442 Training Memorandum. no. 11. Royal Engineers. Supplement. Prefabricated bituminous surfacing (P.B.S). method of advanced landing groud (A.L.G). Runway Construction. - Engeland Voorschrift 26/GS Publications/1269 Training Memorandum. no. 15. Royal Engineers. Snow and Mountain Warfare. 1945 - Engeland Voorschrift 26/GS Publications/1405 Pamphlet no. 35 A. Combined Operations. Royal Engineers. (Other than transportation Units). WO 7348 - Engeland Voorschrift 26/GS/Publcations/1158