Walther, I. (2009). Developing and Implementing an Evaluation of the Foreign Language Requirement at Duke University. In J. M. Norris, J. M. Davis, C. Sinicrope, & Y. Watanabe (Eds.), Towards Useful Program Evaluation in College Foreign Language Education (pp. 119–140). National Foreign Language Resource Center.

Walther, Ingeborg. “Developing and Implementing an Evaluation of the Foreign Language Requirement at Duke University.” In Towards Useful Program Evaluation in College Foreign Language Education, edited by J. M. Norris, J McE Davis, C. Sinicrope, and Y. Watanabe, 119–40. National Foreign Language Resource Center, 2009.

Walther I. Developing and Implementing an Evaluation of the Foreign Language Requirement at Duke University. In: Norris JM, Davis JM, Sinicrope C, Watanabe Y, editors. Towards Useful Program Evaluation in College Foreign Language Education. National Foreign Language Resource Center; 2009. p. 119–40.

Walther, Ingeborg. “Developing and Implementing an Evaluation of the Foreign Language Requirement at Duke University.” Towards Useful Program Evaluation in College Foreign Language Education, edited by J. M. Norris et al., National Foreign Language Resource Center, 2009, pp. 119–40.

Walther I. Developing and Implementing an Evaluation of the Foreign Language Requirement at Duke University. In: Norris JM, Davis JM, Sinicrope C, Watanabe Y, editors. Towards Useful Program Evaluation in College Foreign Language Education. National Foreign Language Resource Center; 2009. p. 119–140.