Ellis, M. H. (1999). The care of prints and drawings. AltaMira.
Cita Chicago Style (17a ed.)Ellis, Margaret Holben. The Care of Prints and Drawings. Walnut Creek: AltaMira, 1999.
Cita MLA (8a ed.)Ellis, Margaret Holben. The Care of Prints and Drawings. AltaMira, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.