Pennington, F. C. (1980). Assessing educational needs of adults. Jossey-Bass.
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Chicago-čujuhus (17. p.)
Pennington, Floyd C. Assessing Educational Needs of Adults. San Francisco: Jossey-Bass, 1980.
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MLA-čujuhus (9. p.)
Pennington, Floyd C. Assessing Educational Needs of Adults. Jossey-Bass, 1980.
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