Cohen, W. M. (n.d.). R&D Information Flows, Appropriability and R&D Intensity. In R. N. Spivack (Ed.), Papers and proceedings of the Advanced Technology Program’s International Conferences on the Economic Evaluation of Technological Chang (pp. 22–29). NIST Special Publication 952.

Cohen, W. M. “R&D Information Flows, Appropriability and R&D Intensity.” In Papers and Proceedings of the Advanced Technology Program’s International Conferences on the Economic Evaluation of Technological Chang, edited by R. N. Spivack, 22–29. NIST Special Publication 952, n.d.

Cohen WM. R&D Information Flows, Appropriability and R&D Intensity. In: Spivack RN, editor. Papers and proceedings of the Advanced Technology Program’s International Conferences on the Economic Evaluation of Technological Chang. NIST Special Publication 952; p. 22–9.

Cohen, W. M. “R&D Information Flows, Appropriability and R&D Intensity.” Papers and Proceedings of the Advanced Technology Program’s International Conferences on the Economic Evaluation of Technological Chang, edited by R. N. Spivack, NIST Special Publication 952, pp. 22–29.

Cohen WM. R&D Information Flows, Appropriability and R&D Intensity. In: Spivack RN, editor. Papers and proceedings of the Advanced Technology Program’s International Conferences on the Economic Evaluation of Technological Chang. NIST Special Publication 952; p. 22–29.