Guyana Ministry of Education. (2004). Social studies curriculum guide: Level 4.
Cita Chicago Style (17a ed.)Guyana Ministry of Education. Social Studies Curriculum Guide: Level 4. [S.l.], 2004.
Cita MLA (9a ed.)Guyana Ministry of Education. Social Studies Curriculum Guide: Level 4. 2004.
Precaución: Estas citas no son 100% exactas.