Evans, H. L. (1936). A world of people: A study of the world friendship attitudes of 600 intermediates. Presbyterian Board of Christian Education.
Chicago-viite (17. p.)Evans, Hazel L. A World of People: A Study of the World Friendship Attitudes of 600 Intermediates. Philadelphia: Presbyterian Board of Christian Education, 1936.
MLA-viite (8. p.)Evans, Hazel L. A World of People: A Study of the World Friendship Attitudes of 600 Intermediates. Presbyterian Board of Christian Education, 1936.
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