APA
M. W. Woerdeman, . (1967). Excerpta Medica. Amsterdam: Excerpta Medica Foundation.
Chicago
M. W. Woerdeman, . 1967. Excerpta Medica. Amsterdam: Excerpta Medica Foundation.
Harvard
M. W. Woerdeman, . (1967). Excerpta Medica. Amsterdam: Excerpta Medica Foundation.
MLA
M. W. Woerdeman, . Excerpta Medica. Amsterdam: Excerpta Medica Foundation. 1967.