APA-viite (7. p.)
Hansal, A., Weigl, M., & Bull, T. (2010). Oracle Siebel CRM 8 installation and management: Install, configure, and manage a robust customer relationship management system using Siebel CRM. Packt Pub..
Chicago-viite (17. p.)
Hansal, Alexander, Michael Weigl, ja Tim Bull. Oracle Siebel CRM 8 Installation and Management: Install, Configure, and Manage a Robust Customer Relationship Management System Using Siebel CRM. Birmingham, U.K.: Packt Pub., 2010.
MLA-viite (9. p.)
Hansal, Alexander, et al. Oracle Siebel CRM 8 Installation and Management: Install, Configure, and Manage a Robust Customer Relationship Management System Using Siebel CRM. Packt Pub., 2010.
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