Baldwin, R. E. (1990). Philippine trade liberalization: Options for the 1990s. s.n.].
Chicagoスタイル(17版)引用形式Baldwin, Robert E. Philippine Trade Liberalization: Options for the 1990s. [s.l: s.n.], 1990.
MLA(9版)引用形式Baldwin, Robert E. Philippine Trade Liberalization: Options for the 1990s. s.n.], 1990.
警告: この引用は必ずしも正確ではありません.