This bibliography is the fifth edition of a work which lists published materials and unpublished theses and dissertations in vocabulary studies. Works included span the period from 1874 through December 1972. Sicty-nine categories are classified in three broad subject areas: acquisition and development, instructional materials, and research. Within each division, titles are listed alphabetically by author. Many titles relate not only to the category under which they are listed, but also in a less direct way to several others; these related categories are indicated by marginal notations following the entries. An author index allows access to articles by a particular author which may appear in different categories. Items appearing without a given author are listed at the end of the author index. (DI)