Scientists have been forecasting the introduction of zebra mussels to North America for over a century, and yet these alarm bells were ignored for decades. T.F Nalepa and D.W. Schlosser summarize several of these warnings in the opening of Zebra Mussels- Biology, Impacts and Control (1993, Lewis Publishers, CRC Press Inc, Boca Raton, FL, 810 pp.) Quotes and reference citations from the book are listed in this document.