Stielow, F., & Tibbo, H. (1988). The Negative Search, Online Reference, and the Humanities: A Critical Essay in Library Literature.
Citazione stile Chigago Style (17a edizione)Stielow, Frederick, e Helen Tibbo. The Negative Search, Online Reference, and the Humanities: A Critical Essay in Library Literature. 1988.
Citatione MLA (9a ed.)Stielow, Frederick, e Helen Tibbo. The Negative Search, Online Reference, and the Humanities: A Critical Essay in Library Literature. 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.