TY - GEN AB - cse-90-025 AU - Ward, Karen DA - 1990 DO - 10.6083/dr26xx63g DO - DOI ID - 3908 L1 - https://digitalcollections.ohsu.edu/record/3908/files/csetech-225.pdf L2 - https://digitalcollections.ohsu.edu/record/3908/files/csetech-225.pdf L4 - https://digitalcollections.ohsu.edu/record/3908/files/csetech-225.pdf LK - https://digitalcollections.ohsu.edu/record/3908/files/csetech-225.pdf N2 - cse-90-025 PY - 1990 T1 - Air traffic control communication at Portland International Airport: July 1, 1990 TI - Air traffic control communication at Portland International Airport: July 1, 1990 UR - https://digitalcollections.ohsu.edu/record/3908/files/csetech-225.pdf Y1 - 1990 ER -