Comets
By: Martyn Hamer.
Series: An Easy-read fact book; Easy-read fact books.
Publisher: F. Watts
Published: 1984
Place of publication: London; New York
Language: eng
Number of pages: 32
Subjects: Comets -- Juvenile literature.; Comets.
Description: Describes the origin, composition, orbit, and speed of different types of comets.
Notes: Includes index.