Não informado. (1949). Science reports of the Research Institutes. Tohoku University, Research Institutes.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Science Reports of the Research Institutes. Sendai, Japão: Tohoku University, Research Institutes, 1949.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Science Reports of the Research Institutes. Tohoku University, Research Institutes, 1949.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.