University, U. c. S. L. (1945). Parks Air College Airline Operation.
Chicagoスタイル(17版)引用形式University, Unknown creator; St. Louis. Parks Air College Airline Operation. 1945.
MLA(8版)引用形式University, Unknown creator; St. Louis. Parks Air College Airline Operation. 1945.
警告: この引用は必ずしも正確ではありません.