APA引文

Calderón Delgado, M. A. (2008). Preventive conservation of documents.

Citación estilo Chicago

Calderón Delgado, Marco A. Preventive Conservation of Documents. 2008.

MLA引文

Calderón Delgado, Marco A. Preventive Conservation of Documents. 2008.

警告：這些引文格式不一定是100％准確.