Home › Authors › Fred R. Eckman 👤 Fred R. Eckman 5 books Books by Fred R. Eckman Second Language Acquisition Theory and Pedagogy 2013 Universals of second language acquisition 1984 Current themes in linguistics 1977 On the explanation of some typ On the explanation of some typological facts about raising 1976 Optional rules and inclusion r Optional rules and inclusion relations 1974