Cita APA (7th ed.)

Chandra, D. (1991). Quality circles. Tata Mc Graw Hill.

Cita Chicago (17th ed.)

Chandra, Durgesh. Quality Circles. New Delhi: Tata Mc Graw Hill, 1991.

Cita MLA (9th ed.)

Chandra, Durgesh. Quality Circles. Tata Mc Graw Hill, 1991.