Young, P., & Schmid, C. F. (1949). Scientific social survey and research: An introduction to the background, content, methods and analysis of social studies (2d ed.). Prentice-Hall.
Citace podle Chicago (17th ed.)Young, Pauline, a Calvin Fisher Schmid. Scientific Social Survey and Research: An Introduction to the Background, Content, Methods and Analysis of Social Studies. 2d ed. New York: Prentice-Hall, 1949.
Citace podle MLA (9th ed.)Young, Pauline, a Calvin Fisher Schmid. Scientific Social Survey and Research: An Introduction to the Background, Content, Methods and Analysis of Social Studies. 2d ed. Prentice-Hall, 1949.
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