APA (7th ed.) Citation

Willis, J. R., & Willis, D. (1996). Challenge and change in language teaching. MacMillan Heineman English Language Teaching.

Chicago Style (17th ed.) Citation

Willis, Jane R., and Dave Willis. Challenge and Change in Language Teaching. Oxford: MacMillan Heineman English Language Teaching, 1996.

MLA (9th ed.) Citation

Willis, Jane R., and Dave Willis. Challenge and Change in Language Teaching. MacMillan Heineman English Language Teaching, 1996.

Warning: These citations may not always be 100% accurate.