Hyman, H. H. (1967). Survey design and analysis: Principles, cases and procedures (7. print.). The Free Press [u.a.].
Cita Chicago Style (17a ed.)Hyman, Herbert Hiram. Survey Design and Analysis: Principles, Cases and Procedures. 7. print. New York [u.a.]: The Free Press [u.a.], 1967.
Cita MLA (9a ed.)Hyman, Herbert Hiram. Survey Design and Analysis: Principles, Cases and Procedures. 7. print. The Free Press [u.a.], 1967.
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