ATP Staff. (2010). Photovoltaic systems: Instructor's resource guide (2nd ed.). American Technical Pub.
Chicago-viite (17. p.)ATP Staff. Photovoltaic Systems: Instructor's Resource Guide. 2nd ed. Illinois, IL: American Technical Pub, 2010.
MLA-viite (8. p.)ATP Staff. Photovoltaic Systems: Instructor's Resource Guide. 2nd ed. American Technical Pub, 2010.
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