APA (7th ed.) Citation

Sharp, C. J., Karpeles, M., & Vaughan Williams, R. (1954). English folk song: Some conclusions (3rd ed.). Methuen.

Chicago Style (17th ed.) Citation

Sharp, Cecil J., Maud Karpeles, and Ralph Vaughan Williams. English Folk Song: Some Conclusions. 3rd ed. London: Methuen, 1954.

MLA (8th ed.) Citation

Sharp, Cecil J., et al. English Folk Song: Some Conclusions. 3rd ed. Methuen, 1954.