Não informado. (2014). Monographs. Saito Gratitude Foundation, General Department of Scientific Research.
Chicago-viite (17. p.)Não informado. Monographs. Sendai, Japão: Saito Gratitude Foundation, General Department of Scientific Research, 2014.
MLA-viite (8. p.)Não informado. Monographs. Saito Gratitude Foundation, General Department of Scientific Research, 2014.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.