Roy Callender’s back development was one of the best of his time. This 1981 article provides his training routine and methodologies.Source: Muscle & Fitness (August 1981) Page #8 - Muscle & Fitness (Aug 1981) Page #9 - Muscle & Fitness (Aug 1981) Page #10 - Muscle & Fitness (Aug 1981) Page #11 - Muscle & Fitness (Aug 1981) Page #12 - Muscle & Fitness (Aug 1981) Page #13 - Muscle & Fitness (Aug 1981)