Bragonier, R. (1981). What's what : a visual glossary of: The physical world. Hammond.
Cita Chicago (17th ed.)Bragonier, Reginald. What's What : A Visual Glossary of: The Physical World. Maplewood, N.J.: Hammond, 1981.
Cita MLA (9th ed.)Bragonier, Reginald. What's What : A Visual Glossary of: The Physical World. Hammond, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.