Quinn, R. (2007). ECO - electives, core, options: Leaving certificate geography (2nd rev. ed.). Folens.
Chicago-Zitierstil (17. Ausg.)Quinn, Ray. ECO - Electives, Core, Options: Leaving Certificate Geography. 2nd rev. ed. Dublin: Folens, 2007.
MLA-Zitierstil (9. Ausg.)Quinn, Ray. ECO - Electives, Core, Options: Leaving Certificate Geography. 2nd rev. ed. Folens, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.