Foster, R. (1912). Liberty of contract and labor laws: Instruction paper. American School of Correspondence.
Chicago-Zitierstil (17. Ausg.)Foster, Roger. Liberty of Contract and Labor Laws: Instruction Paper. Chicago: American School of Correspondence, 1912.
MLA-Zitierstil (9. Ausg.)Foster, Roger. Liberty of Contract and Labor Laws: Instruction Paper. American School of Correspondence, 1912.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.