Werner, P. K., Nelson, J. P., Spaventa, M., & Knezevic, M. P. (1997). Interactions access (Second edition.). McGraw-Hill.

Werner, Patricia K., John P. Nelson, Marilynn Spaventa, and Miki Prijic Knezevic. Interactions Access. Second edition. New York: McGraw-Hill, 1997.

Werner, Patricia K., et al. Interactions Access. Second edition. McGraw-Hill, 1997.