APA

Koehn P., . (2009). Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1. United States: Association for Computational Linguistics.

Chicago

Koehn Philipp, . 2009. Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1. United States: Association for Computational Linguistics.

Harvard

Koehn P., . (2009). Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1. United States: Association for Computational Linguistics.

MLA

Koehn Philipp, . Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1. United States: Association for Computational Linguistics. 2009.