APA (7th ed.) Citation

Palmer, S., & Morgan, M. (2000). Big book Grammar (BBG), book 6. Heinemann Library.

Chicago Style (17th ed.) Citation

Palmer, Sue, and Michaela Morgan. Big Book Grammar (BBG), Book 6. UK: Heinemann Library, 2000.

MLA (9th ed.) Citation

Palmer, Sue, and Michaela Morgan. Big Book Grammar (BBG), Book 6. Heinemann Library, 2000.