Arranged alphabetically by title, the bibliography lists 49 tests, designed for use with students ranging from preschoolers to adults, that are measures of proficiency in English as a second language. Each citation provides title, author, copyright date, age level suitability, publisher, and a brief annotation describing the purpose of the test. Dates of tests range from 1940 to 1975, with the majority being dated from 1965 to 1975. The bibliography includes tests to measure: language dominance; oral proficiency in English and/or Spanish; English oral comprehension; Navajo-English language dominance; knowledge of the structure of English in context; aural comprehension in English, Spanish, French, and Portuguese; sound perception difficulties of Japanese speakers learning English; oral and written English grammar skills; and English vocabulary development. The document contains addresses of the 22 publishers of the cited tests and an additional listing of 33 major U.S. publishers of standardized tests, their addresses, and telephone numbers. (NEC)