Cita APA (7a ed.)

Chan, L. K. C., Lakonishok, J., & Sougiannis, T. (1999). The stock market valuation of research and development expenditures. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Chan, Louis K. C., Jose Lakonishok, y Theodore Sougiannis. The Stock Market Valuation of Research and Development Expenditures. Cambridge: National Bureau of Economic Research, 1999.

Cita MLA (9a ed.)

Chan, Louis K. C., et al. The Stock Market Valuation of Research and Development Expenditures. National Bureau of Economic Research, 1999.