APA-Zitierstil (7. Ausg.)

Fethke, G. C., Policano, A. J., & Williamson, S. H. (1978). An investigation of the conceptual and qualitative impact of employment tax credits. W.E. Upjohn Inst. for Employment Research.

Chicago-Zitierstil (17. Ausg.)

Fethke, Gary C., Andrew J. Policano, und Samuel H. Williamson. An Investigation of the Conceptual and Qualitative Impact of Employment Tax Credits. Kalamazoo, Mich: W.E. Upjohn Inst. for Employment Research, 1978.

MLA-Zitierstil (9. Ausg.)

Fethke, Gary C., et al. An Investigation of the Conceptual and Qualitative Impact of Employment Tax Credits. W.E. Upjohn Inst. for Employment Research, 1978.