TY  - BOOK
AU  - Mattson, Patrick 
TI  - Air traffic control : : test prep / 
SN  - 1-56027-254-6
U1  - 387.7 
PY  - 1996///]
CY  - Newcastle, Washington : 
PB  - Aviation Supplies & Academics, 
KW  - Air traffic control--Examinations, questions, etc.
KW  - Air traffic controllers--Examinations, questions, etc.
KW  - Air traffic controllers.
N1  - "ASA-ATC"
ER  -