TY  - BOOK
AU  - Gilbert,Glen Alexander
TI  - Air traffic control: the uncrowded sky
T2  - Smithsonian Institution Press publication, no. 4873
SN  - 0874741408
SN  - 087474140
U1  - 629.1366 
PY  - 1973///
CY  - Washington
PB  - Smithsonian Institution Press
KW  - Air traffic control
KW  - United States
KW  - MCE
N1  - 0; 0; 0; 629_136600000000000_GIL
ER  -