BEER, F. P. (2009). MECHANICS OF MATERIALS (6TH ED.). MCGRAW HILL EDUCATION.

BEER, FERDINAND P. MECHANICS OF MATERIALS. 6TH ED. NEW DELHI: MCGRAW HILL EDUCATION, 2009.

BEER, FERDINAND P. MECHANICS OF MATERIALS. 6TH ED. MCGRAW HILL EDUCATION, 2009.