620.137 Guy P 
Guyon , Yves
Prestressed concrete .   Edited by W. E . Johns, from the tr. of
A. J .  Marries ,  J . D . Maries , T . D.  Lazarides .  London , C. R .
Books (1963 )
 2t   diagras. (algas plegs. ) 25 cm. 
Contiene : t.1. Simply-supporter beams. - t . 2 . Statically indeterminats structures.