APA Edition Citation

Merezhkovsky, D. S., Trench, H., & Herbert Trench. (1964). The romance of Leonardo da Vinci. A Signet book.

Chicago Edition Citation

Merezhkovsky, Dmitry Sergeyevich, Herbert Trench, and Herbert Trench. The Romance of Leonardo Da Vinci. New York: A Signet book, 1964.

MLA Edition Citation

Merezhkovsky, Dmitry Sergeyevich, et al. The Romance of Leonardo Da Vinci. A Signet book, 1964.