Cita APA (7th ed.)
Bergstrom, J. C., Boyle, K. J., & Poe, G. L. The Economic Value of Water Quality. Edward Elgar.
Cita Chicago (17th ed.)
Bergstrom, John C., Kevin J. Boyle, i Gregory L. Poe. The Economic Value of Water Quality. Cheltenham, Inglaterra: Edward Elgar.
Cita MLA (9th ed.)
Bergstrom, John C., et al. The Economic Value of Water Quality. Edward Elgar.
Atenció: Aquestes cites poden no estar 100% correctes.