Castro, P. A. (1983). Philippine bilateral air agreements. Foreign Service Institute.
Chicagoスタイル(17版)引用形式Castro, Pacifico A. Philippine Bilateral Air Agreements. Manila: Foreign Service Institute, 1983.
MLA(9版)引用形式Castro, Pacifico A. Philippine Bilateral Air Agreements. Foreign Service Institute, 1983.
警告: この引用は必ずしも正確ではありません.