Observations of the duration and height of the pronunciation of sounds in the word

Petrovsky, S.Observations of the duration and height of the pronunciation of sounds in the word.- Kazan: Typo-Lit.Imp.University, 1903. -29 p., 1 l.Il.: silt .. -Bibliogr.In the tuning.Note .. - Ex.: With a manpower.litter..1. Russian language (collection).Electronic copy source: PBOriginal storage: St. Petersburg State University