Heinemann Explore Science 2nd International Edition Reader G4 Solids Liquids and Gases (Primary Explore Science International Edition) (2nd International edition.). Heinemann.
Chicago-viite (17. p.)Heinemann Explore Science 2nd International Edition Reader G4 Solids Liquids and Gases (Primary Explore Science International Edition). 2nd International edition. Heinemann.
MLA-viite (9. p.)Heinemann Explore Science 2nd International Edition Reader G4 Solids Liquids and Gases (Primary Explore Science International Edition). 2nd International edition. Heinemann.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.