Acker, W. (1974). Basic Procedures for Soil Sampling and Core Drilling. America: Acker Drill Co Inc.
Chicago Style CitationAcker, W.L. Basic Procedures for Soil Sampling and Core Drilling. America: Acker Drill Co Inc, 1974.
MLA CitationAcker, W.L. Basic Procedures for Soil Sampling and Core Drilling. America: Acker Drill Co Inc, 1974.
Warning: These citations may not always be 100% accurate.