APA (7th ed.) Citation
Hewitt, G. (1978). How to sing. EMI Music.
Chicago Style (17th ed.) Citation
Hewitt, Graham. How to Sing. London: EMI Music, 1978.
MLA (9th ed.) Citation
Hewitt, Graham. How to Sing. EMI Music, 1978.
Warning: These citations may not always be 100% accurate.