A key paper is: Curtiss, S. (1977). Genie: A Psycholinguistic Study of a Modern-Day "Wild Child" . Academic Press. If "138" refers to a page or figure, in that book, page 138 discusses Genie's syntactic development.
It seems you're looking for a useful paper related to "Genie Morman" and the number "138" β possibly a reference to a specific study, case number, or document identifier. Genie Morman Interesting 138