TY  - BOOK
AU  - John H. Perry
AU  -  Robert H. Perry, 
TI  - Engineering manual
U1  - 620 
PY  - 1959///
CY  - New York
PB  - McGraw Hill Book Co.Inc
N1  - John H. Perry & Robert H. Perry: Engineering manual.  New York.  McGraw Hill Book Co.Inc, 1959.--(620PER)
ER  -