La Rondelle, H. K. (1975). Perfection and perfectionism. Andrews University.
Chicago-čujuhus (17. p.)La Rondelle, H. K. Perfection and Perfectionism. Andrews University, 1975.
MLA-čujuhus (9. p.)La Rondelle, H. K. Perfection and Perfectionism. Andrews University, 1975.
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