APA-viite (7. p.)
Aspeli, M., & Steele, E. (2011). Professional Plone 4 development: Build robust, content-centric web applications with Plone 4. Packt Pub. Open Source.
Chicago-viite (17. p.)
Aspeli, Martin, ja Eric Steele. Professional Plone 4 Development: Build Robust, Content-centric Web Applications with Plone 4. Birmingham, U.K.: Packt Pub. Open Source, 2011.
MLA-viite (9. p.)
Aspeli, Martin, ja Eric Steele. Professional Plone 4 Development: Build Robust, Content-centric Web Applications with Plone 4. Packt Pub. Open Source, 2011.
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