Both editions of The C Programming Language are on archive.org, by the way. This is the second edition: https://ia802802.us.archive.org/15/items/The_C_Program

Both editions of The C Programming Language are on archive.org, by the way. This is the second edition: https://ia802802.us.archive.org/15/items/The_C_Programming_Language/The_C_Programming_Language.pdf https://ia802802.us.archive.org/15/items/The_C_Programming_L... The Aho book also looks to have gone out of print. http://infolab.stanford.edu/~ullman/focs.html http://infolab.stanford.edu/~ullman/focs.html