I am currently writing my master-thesis and I want to state in a subsection, that a one way hash function is not a method of encryption. But because it is a thesis, I must supply a scientific source for such a statement. My first guess was "Applied Cryptography" from Bruce Schneier, but he never explicitly says, that a one way hash function is not a method of encryption.
Can anyone give my a hint where I should look for a solid quote? Internet articles are not allowed in this thesis, a book or scientific paper would be great.