Pulgram, E. (1959). Introduction to the spectrography of speech. Mouton.
芝加哥风格引文Pulgram, Ernst. Introduction to the Spectrography of Speech. 's-Gravenhage: Mouton, 1959.
MLA引文Pulgram, Ernst. Introduction to the Spectrography of Speech. Mouton, 1959.
警告：这些引文格式不一定是100％准确.