APA (7th ed.) Citation

Lang, M. R., & Cheney, J. V. Day is gone, op. 40.

Chicago Style (17th ed.) Citation

Lang, Margaret Ruthven, and John Vance Cheney. Day Is Gone, Op. 40.

MLA (9th ed.) Citation

Lang, Margaret Ruthven, and John Vance Cheney. Day Is Gone, Op. 40.

Warning: These citations may not always be 100% accurate.