Não informado. (1969). The Year book of neurology and neurosurgery. Year Book Medical Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. The Year Book of Neurology and Neurosurgery. Chicago, Ill: Year Book Medical Publishers, 1969.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. The Year Book of Neurology and Neurosurgery. Year Book Medical Publishers, 1969.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.