Guyana Ministry of Education & Kartick, P. (2009). Secondary school transitional curriculum guide - Social studies: Grades 6-7 ([Stand:] 22nd May, 2009.).
Citazione stile Chigago Style (17a edizione)Guyana Ministry of Education e Philip Kartick. Secondary School Transitional Curriculum Guide - Social Studies: Grades 6-7. [Stand:] 22nd May, 2009. [S.l.], 2009.
Citatione MLA (9a ed.)Guyana Ministry of Education e Philip Kartick. Secondary School Transitional Curriculum Guide - Social Studies: Grades 6-7. [Stand:] 22nd May, 2009. 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.