APA Style

Wardhaugh , Ronald, Janet M. Fuller. (1998). An introduction to sociolinguistics (Third Edition). Oxford: Blackwell Publishers.

Chicago Style

Wardhaugh , Ronald, Janet M. Fuller. An introduction to sociolinguistics. Third Edition Oxford: Blackwell Publishers, 1998. Text.

MLA Style

Wardhaugh , Ronald, Janet M. Fuller. An introduction to sociolinguistics. Third Edition Oxford: Blackwell Publishers, 1998. Text.

Turabian Style

Wardhaugh , Ronald, Janet M. Fuller. An introduction to sociolinguistics. Third Edition Oxford: Blackwell Publishers, 1998. Print.