Gaya APA

Precontrainte, F, I, D, L. (1989). Prestressed concrete: safety precautions in post-tensioning: guide to good practice . London: Thomas Telford ltd..

Gaya MLA

Precontrainte, Federation, Internationale, De, La. "Prestressed concrete: safety precautions in post-tensioning: guide to good practice". London: Thomas Telford ltd., 1989. Text.