Contemporary Linguistics: An Introduction

Learning about Language Ser.: Introduction to Sociolinguistics by Janet...

Living Language: An Introduction to Linguistic Anthropology by Laura M. Ahearn

Learning about Language Ser.: An Introduction to Foreign Language Learning...

Contemporary Linguistics By William O'Grady, Michael Dobrovolsky

An Introduction to Phonology (Learning About Language) by Francis Katamba

An Introduction to Sociolinguistics (Learning about Language) by Janet Holmes

An Introduction to Sociolinguistics (Learning About Language) by Holmes, Janet