“Gamkrelidze and Ivanov’s wide-ranging and interdisciplinary work, superbly translated from Russian, is a must for every student of Indo-European prehistory. Its erudition is unsurpassed, and its unorthodox conclusions are a continuing challenge.”
Prof. Dr. Martin Haspelmath, Max-Planck-Institut für Evolutionäre Anthropologie

Preface by: Roman Jakobson
Translated by: Nichols Johanna