Royal Canadian Air Force Exercise Plans for Physical Fitness: Two Books in One / Two Famous Basic Plans (The XBX Plan for Women, the 5BX Plan for Men)

https://www.amazon.com/gp/product/1626545480/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=g4l01-20&creative=9325&linkCode=as2&creativeASIN=1626545480&linkId=ec77e23505d3a3968c4793ff1ce678b2