Chan, L. K. C., Lakonishok, J., & Sougiannis, T. (1999). The stock market valuation of research and development expenditures. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Chan, Louis K. C., Jose Lakonishok, agus Theodore Sougiannis. The Stock Market Valuation of Research and Development Expenditures. Cambridge: National Bureau of Economic Research, 1999.
Lua MLA (9ú heag.)Chan, Louis K. C., et al. The Stock Market Valuation of Research and Development Expenditures. National Bureau of Economic Research, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.