Estrada, A. (1970). Philosophy of law. University Book Supply.
Chicagoスタイル(17版)引用形式Estrada, Antonio. Philosophy of Law. Manila: University Book Supply, 1970.
MLA(9版)引用形式Estrada, Antonio. Philosophy of Law. University Book Supply, 1970.
警告: この引用は必ずしも正確ではありません.