Does anybody know of a guide book for ski touring in Patagonia? Covering the areas of Bariloche, El Calafate and Ushuaia. Preferably in English, but Spanish would do too.
There's a book called "Patagonia: The Andes, a Guide For Climbers" by John Biggar.
Its main focus is climbing, but also covers ski-mountaineering:
This new edition has expanded coverage of the whole range, with many new photos and route diagrams plus extended coverage of the ski-mountaineering opportunities in the Andes.The book contains details of how to climb all 100 of the major 6000m peaks in the Andes, plus route information for approximately 300 other peaks. There are over 240 route diagrams, 150 additional photos and 80 sketch maps.
which is likely going to cover the more adventurous among us, seemingly like yourself.