TY - BOOK ID - 128563404 TI - Toughness training for life : a revolutionary program for maximizing health, happiness, and productivity PY - 1993 SN - 0525936122 PB - New York : Dutton, DB - UniCat KW - Physical education and training KW - Physical fitness KW - Stress management. KW - Psychological aspects. UR - https://www.unicat.be/uniCat?func=search&query=sysid:128563404 AB - ER -