Révai nagy lexikona; az ismeretek enciklopédiája; Volume 4

A comprehensive encyclopedia of knowledge, covering a range of subjects from science and technology to politics and culture. Originally published in Hungary, this edition has been fully translated and adapted for an English-speaking audience. With over 100,000 entries and 1,800 illustrations, this is an essential reference work for anyone interested in expanding their knowledge and understanding of the world.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.