SPSS Inc. (1994). DBMS/COPY plus: The tool for software connectivity: version 4.0. SPSS.
芝加哥风格引文SPSS Inc. DBMS/COPY Plus: The Tool for Software Connectivity: Version 4.0. Chicago, Ill.: SPSS, 1994.
MLA引文SPSS Inc. DBMS/COPY Plus: The Tool for Software Connectivity: Version 4.0. SPSS, 1994.
警告：这些引文格式不一定是100％准确.