Young, P. (1968). Scientific social surveys & research (4th.). Prentice Hall of India.
Chicago-čujuhus (17. p.)Young, Pauline. Scientific Social Surveys & Research. 4th. Delhi: Prentice Hall of India, 1968.
MLA-čujuhus (9. p.)Young, Pauline. Scientific Social Surveys & Research. 4th. Prentice Hall of India, 1968.
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