ebrary, Inc, Goodwin, H., & Font, X. (2012). Progress in responsible tourism. Goodfellow Publishers.
芝加哥风格引文ebrary, Inc, Harold Goodwin, 与 Xavier Font. Progress in Responsible Tourism. Woodeaton, Oxford: Goodfellow Publishers, 2012.
MLA引文ebrary, Inc, et al. Progress in Responsible Tourism. Goodfellow Publishers, 2012.
警告：这些引文格式不一定是100％准确.