Yu, J., Ting, Z., & Qian, J. (2011). Electrical motor products: International energy-efficiency standards and testing methods. Woodhead Pub.
Chicago-viite (17. p.)Yu, Jianfeng, Zhang Ting, ja Jianming Qian. Electrical Motor Products: International Energy-efficiency Standards and Testing Methods. Cambridge: Woodhead Pub, 2011.
MLA-viite (8. p.)Yu, Jianfeng, et al. Electrical Motor Products: International Energy-efficiency Standards and Testing Methods. Woodhead Pub, 2011.
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