Cita APA (7a ed.)

Tucker, W., & Giacconi, R. (1985). The x-ray universe. Harvard University Press.

Cita Chicago Style (17a ed.)

Tucker, Wallace, y Riccardo Giacconi. The X-ray Universe. Cambridge: Harvard University Press, 1985.

Cita MLA (9a ed.)

Tucker, Wallace, y Riccardo Giacconi. The X-ray Universe. Harvard University Press, 1985.