GLOVER, D. (1999). YOUNG DISCOVERERS FLYING AND FLOATING SCIENCE WITH AIR AND WATER.
Chicago-referens (17:e uppl.)GLOVER, DAVID. YOUNG DISCOVERERS FLYING AND FLOATING SCIENCE WITH AIR AND WATER. 1999.
MLA-referens (9:e uppl.)GLOVER, DAVID. YOUNG DISCOVERERS FLYING AND FLOATING SCIENCE WITH AIR AND WATER. 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.