HOLLINS-ALEXANDER, S. (2013). Online professional development through virtual learning communities. Corwin.
芝加哥风格引文HOLLINS-ALEXANDER, Sonja. Online Professional Development Through Virtual Learning Communities. Corwin, 2013.
MLA引文HOLLINS-ALEXANDER, Sonja. Online Professional Development Through Virtual Learning Communities. Corwin, 2013.
警告：这些引文格式不一定是100％准确.