Conchelos, M. (1983). Certification, Re-certification and Continuing Education.
Citazione stile Chigago Style (17a edizione)Conchelos, Mary. Certification, Re-certification and Continuing Education. 1983.
Citatione MLA (9a ed.)Conchelos, Mary. Certification, Re-certification and Continuing Education. 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.