Young, P. V. (1960). Scientific social surveys and research: An introduction to the background, content, methods, principles, and analysis of social studies (3rd ed.). Englewood Cliffs, N.J: Prentice-Hall.
Παραπομπή Chicago StyleYoung, Pauline V. Scientific Social Surveys and Research: An Introduction to the Background, Content, Methods, Principles, and Analysis of Social Studies. 3rd ed. Englewood Cliffs, N.J: Prentice-Hall, 1960.
Παραπομπή MLAYoung, Pauline V. Scientific Social Surveys and Research: An Introduction to the Background, Content, Methods, Principles, and Analysis of Social Studies. 3rd ed. Englewood Cliffs, N.J: Prentice-Hall, 1960.
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