APA (7th ed.) Citation

Clay, M. M. (2007). Copymasters for the observation survey (Rev. 2nd ed.). Heinemann.

Chicago Style (17th ed.) Citation

Clay, Marie M. Copymasters for the Observation Survey. Rev. 2nd ed. Portsmouth, NH: Heinemann, 2007.

MLA (9th ed.) Citation

Clay, Marie M. Copymasters for the Observation Survey. Rev. 2nd ed. Heinemann, 2007.