TY  - GEN
AU  - MILLS,GM
TI  - THE YIELD LINE THEORY A PROGRMMED TEXT
U1  - 624.1771 YIE 
PY  - 1970///
CY  - LONDON
PB  - CONCRETE PUBLICATIONS
N1  - CIVIL ENGINEERING; 0; 0; 0; 624_177100000000000_YIE_L38912
ER  -