About AMSCO
This website uses the textbook named "Workook in Spanish Three Years" (nicknamed AMSCO) from 1989 which was written by Robert J. Nassi, Bernard Bernstein, and Theodore F. Nuzzi. It was published by Amsco School Publications, Inc. in New York City. You can visit their website by going to www.amscopub.com. Most of the information posted on this website is from the 1989 copy of AMSCO which is a copyrighted source and I give them credit for all information displayed.