APA (7th ed.) Citation

Purcell, H., & Pauer, E. (1930). Popular pieces. [Augener].

Chicago Style (17th ed.) Citation

Purcell, Henry, and E. Pauer. Popular Pieces. [London]: [Augener], 1930.

MLA (9th ed.) Citation

Purcell, Henry, and E. Pauer. Popular Pieces. [Augener], 1930.