Cita APA (7a ed.)

H. D. & Spoo, R. E. (1992). Asphodel. Duke University Press.

Cita Chicago Style (17a ed.)

H. D. y Robert E. Spoo. Asphodel. Durham: Duke University Press, 1992.

Cita MLA (8a ed.)

H. D. y Robert E. Spoo. Asphodel. Duke University Press, 1992.