Pulgram Ernst Introduction to the spectrography of speech - 1959 - Janua linguarum : studia memoriae nicolai van wijk dedicata , ed by Cornelis H Van Schooneveld; 7 . Standard No.: 49,861 Source: Textual Subjects--Topical Terms: LINGUISTICS Dewey Class. No.: P:750C3, J9 (P);J9;2