Posture sitting, standing, chair design and exercise

Posture sitting, standing, chair design and exercise

Sonraí bibleagrafaíochta
Príomhchruthaitheoir: Zacharkow, Dennis
Formáid: LEABHAR
Teanga:English
Foilsithe / Cruthaithe: Springfield, Ill. Charles Thomas 1988.
Ábhair:
Posture.
Sitting position.
Standing Posititon.