APA (7th ed.) Citation

Sand, G., Quadrado, J. M., & Graves, R. (1978). Winter in Majorca. Academy Press.

Chicago Style (17th ed.) Citation

Sand, George, José María Quadrado, and Robert Graves. Winter in Majorca. Chicago: Academy Press, 1978.

MLA (9th ed.) Citation

Sand, George, et al. Winter in Majorca. Academy Press, 1978.