Ultimate plank fitness for a strong core, killer abs - and a killer body

Xehetasun bibliografikoak
Egile nagusia:	DeCurtins, Jennifer (Egilea)
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	Beverly, MA Fair Winds Press 2015.
Gaiak:	Exercise. Physical fitness. Abdominal exercises. Abdomen > Muscles. Muscle strength.