Walker, E., & Elsworth, S. (2002). Grammar practice for intermediate students with key. Pearson Education Ltd..
Chicago Style (17th ed.) CitationWalker, Elaine, and Steve Elsworth. Grammar Practice for Intermediate Students with Key. Essex: Pearson Education Ltd., 2002.
MLA (9th ed.) CitationWalker, Elaine, and Steve Elsworth. Grammar Practice for Intermediate Students with Key. Pearson Education Ltd., 2002.
Warning: These citations may not always be 100% accurate.