Here's a link that is actually live, I think:
https://cdn.preterhuman.net/texts/computing/programming/LISP/Scheme/An%20Introduction%20to%20Scheme%20and%20its%20Implementation.pdf Here's another: http://www.cs.rpi.edu/academics/courses/fall00/ai/scheme/reference/schintro-v14/schintro_toc.html https://icem.folkwang-uni.de/~finnendahl/cm_kurse/doc/schintro/schintro_toc.html Carl