Cita APA (7a ed.)

Zucker, L. G., Darby, M. R., & Peng, Y. (1998). Fundamentals or population dynamics and the geographic distribution of U.S. biotechnology enterprises, 1976-1989. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Zucker, Lynne G., Michael R. Darby, y Yusheng Peng. Fundamentals or Population Dynamics and the Geographic Distribution of U.S. Biotechnology Enterprises, 1976-1989. Cambridge, MA: National Bureau of Economic Research, 1998.

Cita MLA (9a ed.)

Zucker, Lynne G., et al. Fundamentals or Population Dynamics and the Geographic Distribution of U.S. Biotechnology Enterprises, 1976-1989. National Bureau of Economic Research, 1998.