APA-viite (7. p.)
Cable, M. El Escorial / by Mary Cable ; and the editors of the Newsweek Book Division, 1971.
Chicago-viite (17. p.)
Cable, Mary. El Escorial / by Mary Cable ; and the Editors of the Newsweek Book Division, 1971.
MLA-viite (9. p.)
Cable, Mary. El Escorial / by Mary Cable ; and the Editors of the Newsweek Book Division, 1971.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.