APA-čujuhus (7. p.)
ROBSON, S. G. (1987). Bedrock Aquifers in the Denver Basin, Colorado: A Quantitative water-resources appraisal. United States Government Print. Office.
Chicago-čujuhus (17. p.)
ROBSON, Stanley G. Bedrock Aquifers in the Denver Basin, Colorado: A Quantitative Water-resources Appraisal. Washington: United States Government Print. Office, 1987.
MLA-čujuhus (9. p.)
ROBSON, Stanley G. Bedrock Aquifers in the Denver Basin, Colorado: A Quantitative Water-resources Appraisal. United States Government Print. Office, 1987.
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