80/20 Workout: The Simple Science To Gaining More Muscle By Training Less (Bodybuilding Series)
| Country | USA |
| Brand | PI KIDS |
| Manufacturer | Phoenix International Publications, Inc. |
| Binding | Board book |
| UnitCount | 1 |
| Format | Sound Book |
| EANs | 9781450830768 |
| ReleaseDate | 0000-00-00 |