Ireland, A., Mason, C., & Jewell, D. (1988). Controlled trial comparing olsalazine and sulphasalazine for the maintenance treatment of ulcerative colitis.
芝加哥风格引文Ireland, A., C. Mason, 与 D. Jewell. Controlled Trial Comparing Olsalazine and Sulphasalazine for the Maintenance Treatment of Ulcerative Colitis. 1988.
MLA引文Ireland, A., et al. Controlled Trial Comparing Olsalazine and Sulphasalazine for the Maintenance Treatment of Ulcerative Colitis. 1988.
警告：这些引文格式不一定是100％准确.