[Unknown]. Glencoe Physical Science (Program). Glencoe/McGraw-Hill.
Cita Chicago (17th ed.)[Unknown]. Glencoe Physical Science (Program). Glencoe/McGraw-Hill.
Cita MLA (9th ed.)[Unknown]. Glencoe Physical Science (Program). Glencoe/McGraw-Hill.
Atenció: Aquestes cites poden no estar 100% correctes.