TY  - BOOK
AU  - Hughes,B.P.
TI  - Limit state theory for reinforced concrete design: SI Units 
SN  - 0273015435.
PY  - 1980///
CY  - London
PB  - Pitman
KW  - Plastic analysis (Theory of structure)
KW  - Reinforced concrete construction
N1  - Previous ed.: 1976
ER  -