Zimbabwe School Examinations Council (ZIMSEC). (2013). Advanced Level Syllabus: Geography 9156 : Examination Syllabus for 2013 - 2016.
Citazione stile Chigago Style (17a edizione)Zimbabwe School Examinations Council (ZIMSEC). Advanced Level Syllabus: Geography 9156 : Examination Syllabus for 2013 - 2016. 2013.
Citatione MLA (9a ed.)Zimbabwe School Examinations Council (ZIMSEC). Advanced Level Syllabus: Geography 9156 : Examination Syllabus for 2013 - 2016. 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.