Fredricks, K. S. (2011). Sage ACT! 2012 cookbook: Over 90 advanced recipes for power users of ACT! 2012 for increasing the efficiency of your business. Packt Pub..
芝加哥风格引文Fredricks, Karen S. Sage ACT! 2012 Cookbook: Over 90 Advanced Recipes for Power Users of ACT! 2012 for Increasing the Efficiency of Your Business. Birmingham, U.K.: Packt Pub., 2011.
MLA引文Fredricks, Karen S. Sage ACT! 2012 Cookbook: Over 90 Advanced Recipes for Power Users of ACT! 2012 for Increasing the Efficiency of Your Business. Packt Pub., 2011.
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