Dey, B. (1988). Quality circles: Concepts and practices. Mc Millan Indian.
Čikaški stil citiranjaDey, B.R. Quality Circles: Concepts and Practices. Delhi: Mc Millan Indian, 1988.
MLA način citiranjaDey, B.R. Quality Circles: Concepts and Practices. Mc Millan Indian, 1988.
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