Training Memorandum. no. 15. Royal Engineers. Snow and Mountain Warfare. 1945 - Engeland Voorschrift 26/GS Publications/1405 Training Memorandum. no. 21. Royal Engineers. Special Training Number. WO 7160 - Engeland Voorschrift 26/GS Trg Publications/1631 Training Memorandum. no. 25. Royal Engineers. WO 8362 - Engeland Voorschrift 26/GS Trg Publcations/1751
