Hospers, J. (1971). Libertarianism, A political philosophy for tomorrow (Primera edición.). Reason Press.
Chicagoスタイル(17版)引用形式Hospers, John. Libertarianism, A Political Philosophy for Tomorrow. Primera edición. Santa Bárbara: Reason Press, 1971.
MLA(8版)引用形式Hospers, John. Libertarianism, A Political Philosophy for Tomorrow. Primera edición. Reason Press, 1971.
警告: この引用は必ずしも正確ではありません.