Muscular Development Magazine May 1973 Vol 10 No 5 - Reg Park Cover Centerfold

Muscular Development Magazine March 1973 Vol 10 No 3 - Kassem Yazbek

Muscular Development Magazine Oct 1973 Vol 10 No 10 Joseph Sasso Cover

Muscular Development Magazine Jan 1973 Vol 10 No 1 - Ell Darden

Muscular Development Magazine Feb 1973 Vol 10 No 2 - SJUR HALL

Muscular Development Magazine April 1973 Vol 10 No 4 - Robert Deegan

Muscular Development Magazine August 1973 Ken Holbert Bodybuilding York Barbell

Muscular Development Magazine Aug 1971 Vol 8 No. 8 Ralph Kroger