Ivan Zilyns'kyj
Translated and revised according to the author's emendations by Wolodymyr T. Zyla and Wendell M. Aycock.
Distributed by Harvard University Press for the Harvard Ukrainian Research
Institute
Cambridge, Massachusetts, 1979
ISBN 0-674-66612-7
An exhaustive description of the sounds of the Ukrainian language in the first quarter of the 20th century, based on over 25 years of research by the author.