Gaible, E. (2004). The Educational Object Economy: Alternatives in Authoring and Aggregation of Educational Software.
Citazione stile Chigago Style (17a edizione)Gaible, Edmond. The Educational Object Economy: Alternatives in Authoring and Aggregation of Educational Software. 2004.
Citatione MLA (9a ed.)Gaible, Edmond. The Educational Object Economy: Alternatives in Authoring and Aggregation of Educational Software. 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.