ISBN:

• 9781619135437
• 9781619130968

Description: 24 pages : color illustrations, color map ; 27 cm.

Notes: Includes index.

LCCN: 2012941650

Control Number: 913121

Series:

• Sky science
• Sky science.

Subjects:

• Air -- Pollution -- Environmental aspects -- Juvenile literature.
• Air -- Pollution -- Juvenile literature.