APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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