1. Exploring space
Author: Worvill, Roy
Library: Central Library and Documentation Center (Kerman)
Subject: Juvenile literature ، Astronautics,، Astronautics
Classification :
TL
793
.
W6
1964
2. Telescope making for beginners
Author: / Roy worvill
Library: University of Tabriz Library, Documentation and Publication Center (East Azarbaijan)
Subject: Telescopes
Classification :
QB88
.
W919
1976
