APA (7th ed.) Citation

O'Callaghan, J. F. (1975). The Spanish military order of Calatrava and its affiliates: Collected studies Variorum collected studies series.

Chicago Style (17th ed.) Citation

O'Callaghan, Joseph F. "The Spanish Military Order of Calatrava and Its Affiliates: Collected Studies." Variorum Collected Studies Series 1975.

MLA (9th ed.) Citation

O'Callaghan, Joseph F. "The Spanish Military Order of Calatrava and Its Affiliates: Collected Studies." Variorum Collected Studies Series, 1975.

Warning: These citations may not always be 100% accurate.