Cooke, B., & Nagle, G. (2012). Geography [SL and HL]: IB diploma programme. International Baccalaureate.
Cita Chicago Style (17a ed.)Cooke, Briony, y Garrett Nagle. Geography [SL and HL]: IB Diploma Programme. Cardiff: International Baccalaureate, 2012.
Cita MLA (9a ed.)Cooke, Briony, y Garrett Nagle. Geography [SL and HL]: IB Diploma Programme. International Baccalaureate, 2012.
Precaución: Estas citas no son 100% exactas.