Kumar, V. (2013). Profitable Customer Engagement: Concepts, Metrics, and Strategies. SAGE Publications India Pvt. Ltd.
芝加哥风格引文Kumar, V. Profitable Customer Engagement: Concepts, Metrics, and Strategies. New Delhi: SAGE Publications India Pvt. Ltd, 2013.
MLA引文Kumar, V. Profitable Customer Engagement: Concepts, Metrics, and Strategies. SAGE Publications India Pvt. Ltd, 2013.
警告：这些引文格式不一定是100％准确.