APA (7th ed.) Citation

Seifert, W. (1957). Giacomo Puccini (o.A.). Breitkopf & Härtel.

Chicago Style (17th ed.) Citation

Seifert, Wolfgang. Giacomo Puccini. o.A. Leipzig: Breitkopf & Härtel, 1957.

MLA (8th ed.) Citation

Seifert, Wolfgang. Giacomo Puccini. o.A. Breitkopf & Härtel, 1957.

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