Durgesh Chandra, Debabrata Ghosh Roy, Nanduri Janakiram, & Suresh Bandekar. (1991). Quality circles Growing big through small groups. Tata McGraw-Hill publishing company Limited.
Παραπομπή Chicago StyleDurgesh Chandra, Debabrata Ghosh Roy, Nanduri Janakiram, και Suresh Bandekar. Quality Circles Growing Big Through Small Groups. New Delhi: Tata McGraw-Hill publishing company Limited, 1991.
Παραπομπή MLADurgesh Chandra, et al. Quality Circles Growing Big Through Small Groups. Tata McGraw-Hill publishing company Limited, 1991.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.