Turtledove, H., & Dufris, W. (2007). Beyond the gap: A novel of the opening of the world (Unabridged.). Tantor Media.
Cita Chicago Style (17a ed.)Turtledove, Harry, y William Dufris. Beyond the Gap: A Novel of the Opening of the World. Unabridged. Old Saybrook: Tantor Media, 2007.
Cita MLA (8a ed.)Turtledove, Harry, y William Dufris. Beyond the Gap: A Novel of the Opening of the World. Unabridged. Tantor Media, 2007.
Precaución: Estas citas no son 100% exactas.