APA
Pietro Bucalossi, . (1989). Tumori. New York: Academic Press.
Chicago
Pietro Bucalossi, . 1989. Tumori. New York: Academic Press.
Harvard
Pietro Bucalossi, . (1989). Tumori. New York: Academic Press.
MLA
Pietro Bucalossi, . Tumori. New York: Academic Press. 1989.