Hillis, N. D. The Investment of Influence: A Study of Social Sympathy and Service.
Tohutoru Kātū Chicago (17th ed.)Hillis, Newell Dwight. The Investment of Influence: A Study of Social Sympathy and Service.
Tohutoro MLA (9th ed.)Hillis, Newell Dwight. The Investment of Influence: A Study of Social Sympathy and Service.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.