Selected Studies of the Principle of Relative Frequency in Language Autor George Kingsley Zipf 12 apr 2014 Hardback Preț: 486.09 lei 3-5 săpt.
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Human Behavior and the Principle of Least Effort Autor George Kingsley Zipf 5 iun 2012 Paperback Preț: 383.50 lei 38-44 zile