6 books in series

Cambridge Textbooks in Linguistics

Cambridge Textbooks in Linguistics is a 6-book series with 6 released primary works first released in 1973 with contributions by John Laver, William Croft, D. Alan Cruse, Florian Coulmas, Ingo Plag, Richard Hudson, and Joan L. Bybee.

Writing systems
A Gun for Sale
Language Change
An Introduction to Word Grammar
Word-Formation in English
Cognitive Linguistics