TY  - GEN
AU  - Einon, Geoff (jt. auth)
TI  - Systems Behaviour Module 2: : air traffic control a man-machine system
SN  - 33502601 X
U1  - 658.4 
PY  - 1973///
CY  - England
PB  - The Open University
KW  - Air traffic control systems engineering
ER  -