एपीए उद्धरण

Alfaro López, H. G. (2011). In Praise of Library History.

शिकागो स्टाइल उद्धरण

Alfaro López, Héctor Guillermo. In Praise of Library History. 2011.

एमएलए उद्धरण

Alfaro López, Héctor Guillermo. In Praise of Library History. 2011.