APA (7th ed.) Citation

LTC 2009 Poznan, Poland, & Vetulani, Z. (2011). Human language technology: challenges for computer science and linguistics: 4th language and technology conference, LTC 2009, Poznan, Poland, November 6-8, 2009, revised selected papers. Springer.

Chicago Style (17th ed.) Citation

LTC 2009 Poznan, Poland, and Zygmunt Vetulani. Human Language Technology: Challenges for Computer Science and Linguistics: 4th Language and Technology Conference, LTC 2009, Poznan, Poland, November 6-8, 2009, Revised Selected Papers. Berlin, Heidelberg: Springer, 2011.

MLA (9th ed.) Citation

LTC 2009 Poznan, Poland, and Zygmunt Vetulani. Human Language Technology: Challenges for Computer Science and Linguistics: 4th Language and Technology Conference, LTC 2009, Poznan, Poland, November 6-8, 2009, Revised Selected Papers. Springer, 2011.