APA
(1981). Excerpta Medica Cancer. Amsterdam: Excerpta Medica Foundation.
Chicago
1981. Excerpta Medica Cancer. Amsterdam: Excerpta Medica Foundation.
Harvard
(1981). Excerpta Medica Cancer. Amsterdam: Excerpta Medica Foundation.
MLA
Excerpta Medica Cancer. Amsterdam: Excerpta Medica Foundation. 1981.