APA (7th ed.) Citation

Acs, Z. J., Feldman, M. P., Audretsch, D. B., & Acs, Z. J. (1991). R & D spillovers and recipient firm size. WZB.

Chicago Style (17th ed.) Citation

Acs, Zoltán J., Maryann P. Feldman, David B. Audretsch, and Zoltán J. Acs. R & D Spillovers and Recipient Firm Size. Berlin: WZB, 1991.

MLA (9th ed.) Citation

Acs, Zoltán J., et al. R & D Spillovers and Recipient Firm Size. WZB, 1991.