APA (7th ed.) Citation
Qu, B., Cong, G., Li, C., Sun, A., & Chen, H. (2012). An evaluation of classification models for question topic categorization. Journal of the American Society for Information Science & Technology, 63(5), 889-904.
Chicago Style (17th ed.) Citation
Qu, Bo, Gao Cong, Cuiping Li, Aixin Sun, and Hong Chen. "An Evaluation of Classification Models for Question Topic Categorization." Journal of the American Society for Information Science & Technology 63, no. 5 (2012): 889-904.
MLA (9th ed.) Citation
Qu, Bo, et al. "An Evaluation of Classification Models for Question Topic Categorization." Journal of the American Society for Information Science & Technology, vol. 63, no. 5, 2012, pp. 889-904.
Warning: These citations may not always be 100% accurate.