APA (7th ed.) Citation

Bart, J., & Hartley, D. R. (2011). DS: Software for analyzing data collected using double sampling. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Bart, Jonathan, and Dana-Lyn R. Hartley. DS: Software for Analyzing Data Collected Using Double Sampling. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2011.

MLA (9th ed.) Citation

Bart, Jonathan, and Dana-Lyn R. Hartley. DS: Software for Analyzing Data Collected Using Double Sampling. U.S. Department of the Interior, U.S. Geological Survey, 2011.