Aerospace Bibliography, Fourth Edition

January 1968 edition of NASA’s annotated, graded reading list for teachers and students, compiled by the National Aerospace Education Council. Organized into books (by subject, with reading levels from primary grades through college/adult), reference works, periodicals, and classroom teaching aids, plus author and title indexes and a directory of publisher addresses. The preface notes this is the first edition to arrange teaching aids by subject heading and to drop film and filmstrip listings, directing readers instead to dedicated film bibliographies.