APA (7th ed.) Citation

Cook, R. F. (2002). A companion to the works of Heinrich Heine. Camden House.

Chicago Style (17th ed.) Citation

Cook, Roger F. A Companion to the Works of Heinrich Heine. Rochester, NY: Camden House, 2002.

MLA (9th ed.) Citation

Cook, Roger F. A Companion to the Works of Heinrich Heine. Camden House, 2002.

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