Citação norma APA

Cohen, W. M., Nelson, R. R., & Walsh, J. P. (2000). Protecting their intellectual assets: Appropriability conditions and why U.S. manufacturing firms patent(or not). National Bureau of Economic Research.

Citação norma Chicago

Cohen, Wesley M., Richard R. Nelson, and John P. Walsh. Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent(or Not). Cambridge: National Bureau of Economic Research, 2000.

Citação norma MLA

Cohen, Wesley M., et al. Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent(or Not). National Bureau of Economic Research, 2000.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.