Ewert, G. (1986). The Beginnings of Instruction in Library Use: Selected German Examples from the 17th to 19th Centuries.
Style de citation Chicago (17e éd.)Ewert, Gisela. The Beginnings of Instruction in Library Use: Selected German Examples from the 17th to 19th Centuries. 1986.
Style de citation MLA (9e éd.)Ewert, Gisela. The Beginnings of Instruction in Library Use: Selected German Examples from the 17th to 19th Centuries. 1986.
Attention : ces citations peuvent ne pas être correctes à 100%.