APA (7th ed.) Citation

Weir, C. J., & Roberts, J. (1994). Evaluation in ELT (1. publ.). Blackwell.

Chicago Style (17th ed.) Citation

Weir, Cyril J., and Jon Roberts. Evaluation in ELT. 1. publ. Oxford [u.a.]: Blackwell, 1994.

MLA (9th ed.) Citation

Weir, Cyril J., and Jon Roberts. Evaluation in ELT. 1. publ. Blackwell, 1994.