Cite
DERIV: a computer program for calculating pressure derivatives for use in hydraulic test analysis
MLA
Spane, F. A., Jr., and S. K. Wurstner. “DERIV: A Computer Program for Calculating Pressure Derivatives for Use in Hydraulic Test Analysis.” Ground Water, vol. 31, no. 5, Sept. 1993, p. 814. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsggo&AN=edsgcl.14550004&authtype=sso&custid=ns315887.
APA
Spane, F. A., Jr., & Wurstner, S. K. (1993). DERIV: a computer program for calculating pressure derivatives for use in hydraulic test analysis. Ground Water, 31(5), 814.
Chicago
Spane, F.A., Jr., and S.K. Wurstner. 1993. “DERIV: A Computer Program for Calculating Pressure Derivatives for Use in Hydraulic Test Analysis.” Ground Water 31 (5): 814. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsggo&AN=edsgcl.14550004&authtype=sso&custid=ns315887.