Mendenhall, W. (1971). Elementary Survey Sampling William Mendenhall; Lyman Ott And Richard L. Scheaffer. Wadsworth.
Chicago-viite (17. p.)Mendenhall, William. Elementary Survey Sampling William Mendenhall; Lyman Ott And Richard L. Scheaffer. Wadsworth, 1971.
MLA-viite (8. p.)Mendenhall, William. Elementary Survey Sampling William Mendenhall; Lyman Ott And Richard L. Scheaffer. Wadsworth, 1971.
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