@phdthesis{lawvere_1963,
 title = {Functorial Semantics of Algebraic Theories},
 author = {Lawvere, F. William},
 year = {1963},
 school = {Columbia University},
 note = {Reprinted with commentary as Reprints in Theory and Applications of Categories 5 (2004) 1--121},
 url = {http://www.tac.mta.ca/tac/reprints/articles/5/tr5abs.html}
}