APA

Gardner R. P. M., . (1960). The behaviour of prestressed concrete I-beams under combined bending and torsion. London: Cement and Concrete Association.

Chicago

Gardner R P M, . 1960. The behaviour of prestressed concrete I-beams under combined bending and torsion. London: Cement and Concrete Association.

Harvard

Gardner R. P. M., . (1960). The behaviour of prestressed concrete I-beams under combined bending and torsion. London: Cement and Concrete Association.

MLA

Gardner R P M, . The behaviour of prestressed concrete I-beams under combined bending and torsion. London: Cement and Concrete Association. 1960.