[Unknown]. Glencoe Physical Science (Program). Glencoe/McGraw-Hill.
Chicago Style (17th ed.) Citation[Unknown]. Glencoe Physical Science (Program). Glencoe/McGraw-Hill.
MLA (9th ed.) Citation[Unknown]. Glencoe Physical Science (Program). Glencoe/McGraw-Hill.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.