APA Alıntı

Smith, R. A., Alexander, R. B., & Schwarz, G. E. Natural background concentrations of nutrients in streams and rivers of the conterminous United States.

Chicago Stili Alıntı

Smith, Richard A., Richard B. Alexander, ve Gregory E. Schwarz. Natural Background Concentrations of Nutrients in Streams and Rivers of the Conterminous United States.

MLA Alıntı

Smith, Richard A., Richard B. Alexander, ve Gregory E. Schwarz. Natural Background Concentrations of Nutrients in Streams and Rivers of the Conterminous United States.