Ripman, W. The Sounds of Spoken English: A Manual of Ear Training for English Students (4th edition).
Chicago Style (17th ed.) CitationRipman, Walter. The Sounds of Spoken English: A Manual of Ear Training for English Students (4th Edition).
MLA (9th ed.) CitationRipman, Walter. The Sounds of Spoken English: A Manual of Ear Training for English Students (4th Edition).
Warning: These citations may not always be 100% accurate.