APA (7th ed.) Citation

Gold, P. (2004). Gibraltar : British or Spanish? / Peter Gold: British or Spanish? Routledge.

Chicago Style (17th ed.) Citation

Gold, Peter. Gibraltar : British or Spanish? / Peter Gold: British or Spanish? London: Routledge, 2004.

MLA (9th ed.) Citation

Gold, Peter. Gibraltar : British or Spanish? / Peter Gold: British or Spanish? Routledge, 2004.

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