1977 December Muscular Development Magazine, Rod Koontz Paul Wrenn

Muscle Development Bodybuilding Magazine Oct 1977 - Roy Hilligenn Cover Shot

Muscular Development Bodybuilding Magazine 2023

Muscular Development Magazine May/June 1977 Rod Koontz Cover Shot

Muscular Development Magazine Feb 2017 Paige Hathaway Cover Shot

Muscular Development Magazine Sept 2017 Special 2017 Olympia Issue

Muscular Development Magazine May / June 1984 - Lance Dreher

Muscular Development magazine November/December 1976 Clint Beyerle cover