Strzalkowski - Natural Language Information Retrieval - New hardback o - X555z

Croft - Language Modeling for Information Retrieval - New paperback or - X555z

Biemann - Structure Discovery in Natural Language - New paperback or s - X555z

Charting a New Course: Natural Language Processing and Information Retrieval.:

Ziviani - String Processing and Information Retrieval - New paperback - X555z

Perkins - Natural Language Processing Python and NLTK - New paperback - X555z

Reiter - Building Natural Language Generation Systems - New paperback - X555z

Smeaton - Information Retrieval and Hypertext - New paperback or softb - X555z