APA način citiranja

Carvajal Salas, A., & Roldan Quirós, W. A. (2019). Technical extension: An innovative service for educational cooperatives of professional technical high schools.

Čikaški stil citiranja

Carvajal Salas, Alexander, i Walter Andrés Roldan Quirós. Technical Extension: An Innovative Service for Educational Cooperatives of Professional Technical High Schools. 2019.

MLA način citiranja

Carvajal Salas, Alexander, i Walter Andrés Roldan Quirós. Technical Extension: An Innovative Service for Educational Cooperatives of Professional Technical High Schools. 2019.