International Co-operative Alliance. Technological educational institute of Western Macedonia., Karafolas, S., Spear, R., & Stryjan, Y. (2002). ICA International Research Conference :: Local Society & Global Economy: The role of Co-operative : Naousa 2002. Περιστέρι: Εκδόσεις Έλλην.
Παραπομπή Chicago StyleInternational Co-operative Alliance. Technological educational institute of Western Macedonia., Simeon Karafolas, Roger Spear, and Yohanan Stryjan. ICA International Research Conference :: Local Society & Global Economy: The Role of Co-operative : Naousa 2002. Περιστέρι: Εκδόσεις Έλλην, 2002.
Παραπομπή MLAInternational Co-operative Alliance. Technological educational institute of Western Macedonia., Simeon Karafolas, Roger Spear, and Yohanan Stryjan. ICA International Research Conference :: Local Society & Global Economy: The Role of Co-operative : Naousa 2002. Περιστέρι: Εκδόσεις Έλλην, 2002.