APA
Crosson P. R., Stout A. T., . (1984). Productivity effects of cropland erosion in the United State. Washington: Resources for the Future Inc.
Chicago
Crosson Pierre R, Stout Anthony T, . 1984. Productivity effects of cropland erosion in the United State. Washington: Resources for the Future Inc.
Harvard
Crosson P. R., Stout A. T., . (1984). Productivity effects of cropland erosion in the United State. Washington: Resources for the Future Inc.
MLA
Crosson Pierre R, Stout Anthony T, . Productivity effects of cropland erosion in the United State. Washington: Resources for the Future Inc. 1984.