This topic-based course is intended for both vocational students and computing professionals with a lower level of English, and aims to develop students' competence in all four language skills. The 28 units cover key computing functions and associated topics. Authentic reading and listening tasks are complemented by practical output activities which reflect what learners will actually need to do in English.
Various is the correct author for any book with multiple unknown authors, and is acceptable for books with multiple known authors, especially if not all are known or the list is very long (over 50).
If an editor is known, however, Various is not necessary. List the name of the editor as the primary author (with role "editor"). Contributing authors' names follow it.
Note: WorldCat is an excellent resource for finding author information and contents of anthologies.