Estañero, R. A. Strength design for combined torsion shear and bending. Philippine Engineering Journal.
Citazione stile Chigago Style (17a edizione)Estañero, Romeo A. "Strength Design for Combined Torsion Shear and Bending." Philippine Engineering Journal .
Citatione MLA (9a ed.)Estañero, Romeo A. "Strength Design for Combined Torsion Shear and Bending." Philippine Engineering Journal, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.