Ayal, E. B. (1968). The Philippine cotton textile industry. s.n.].
Chicagoスタイル(17版)引用形式Ayal, Eliezer B. The Philippine Cotton Textile Industry. [s.l: s.n.], 1968.
MLA(9版)引用形式Ayal, Eliezer B. The Philippine Cotton Textile Industry. s.n.], 1968.
警告: この引用は必ずしも正確ではありません.