APA (7th ed.) Citation

Johnston, C. M., & Harte, P. T. (1998). Documentation and application of a method to compute maximum slope and aspect of hydraulic gradients. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Johnston, Craig M., and Philip T. Harte. Documentation and Application of a Method to Compute Maximum Slope and Aspect of Hydraulic Gradients. Pembroke, New Hampshire: U.S. Department of the Interior, U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Johnston, Craig M., and Philip T. Harte. Documentation and Application of a Method to Compute Maximum Slope and Aspect of Hydraulic Gradients. U.S. Department of the Interior, U.S. Geological Survey, 1998.