Larsen, J. C. (1979). Information Sources Currently Studied in General Reference Courses.
Citazione stile Chigago Style (17a edizione)Larsen, John C. Information Sources Currently Studied in General Reference Courses. 1979.
Citatione MLA (9a ed.)Larsen, John C. Information Sources Currently Studied in General Reference Courses. 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.