Quinn, R. (2007). ECO - electives, core, options: Leaving certificate geography (2nd rev. ed.). Folens.
Cita Chicago Style (17a ed.)Quinn, Ray. ECO - Electives, Core, Options: Leaving Certificate Geography. 2nd rev. ed. Dublin: Folens, 2007.
Cita MLA (9a ed.)Quinn, Ray. ECO - Electives, Core, Options: Leaving Certificate Geography. 2nd rev. ed. Folens, 2007.
Precaución: Estas citas no son 100% exactas.