Frick, E. (1987). Professional Training for User Education: The U.K.
Citazione stile Chigago Style (17a edizione)Frick, Elizabeth. Professional Training for User Education: The U.K. 1987.
Citatione MLA (9a ed.)Frick, Elizabeth. Professional Training for User Education: The U.K. 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.