Linguistics and Language Behavior Abstracts (ProQuest) This link opens in a new windowLinguistics & Language Behavior Abstracts (LLBA) abstracts and indexes the international literature in linguistics and related disciplines in the language sciences. The database covers all aspects of the study of language including phonetics, phonology, morphology, syntax and semantics, and provides abstracts of journal articles and citations to book reviews drawn from over 1,500 serials publications, and also provides abstracts of books, book chapters, and dissertations.