Não informado. (2014). Monographs. Saito Gratitude Foundation, General Department of Scientific Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Monographs. Sendai, Japão: Saito Gratitude Foundation, General Department of Scientific Research, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Monographs. Saito Gratitude Foundation, General Department of Scientific Research, 2014.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.