Gaya APA

Lambert, D, M., Sharma, A. (1990). Segmentation of markets based on customer service (Vol. 20 Issue: 7, pp.19-27). United Kingdom: Emerald Insight.

Gaya MLA

Lambert, Douglas, M.., Sharma, Arun. "Segmentation of markets based on customer service". Vol. 20 Issue: 7, pp.19-27 United Kingdom: Emerald Insight, 1990. Article.