APA

Krehbiel H. E., . (1916). A book of operas, their histories, their plots, and their music. Garden City, N.Y: Garden City Publishing Co.

Chicago

Krehbiel Henry Edward, . 1916. A book of operas, their histories, their plots, and their music. Garden City, N.Y: Garden City Publishing Co.

Harvard

Krehbiel H. E., . (1916). A book of operas, their histories, their plots, and their music. Garden City, N.Y: Garden City Publishing Co.

MLA

Krehbiel Henry Edward, . A book of operas, their histories, their plots, and their music. Garden City, N.Y: Garden City Publishing Co. 1916.