Gregory, P. N. (1991). Sudden and gradual: Approaches to enlightenment in Chinese thought Buddhist tradition series.
Chicago Style (17th ed.) CitationGregory, Peter N. "Sudden and Gradual: Approaches to Enlightenment in Chinese Thought." Buddhist Tradition Series 1991.
MLA (9th ed.) CitationGregory, Peter N. "Sudden and Gradual: Approaches to Enlightenment in Chinese Thought." Buddhist Tradition Series, 1991.
Warning: These citations may not always be 100% accurate.