Heffernan, J. A. W. (1986). Instructor's manual: Writing: A college Handbook Writing: A college Workbook (2nd ed.). W.W. Norton & Co..

Heffernan, James A. W. Instructor's Manual: Writing: A College Handbook Writing: A College Workbook. 2nd ed. New York: W.W. Norton & Co., 1986.

Heffernan, James A. W. Instructor's Manual: Writing: A College Handbook Writing: A College Workbook. 2nd ed. W.W. Norton & Co., 1986.