What has the author I O Evans written?

I. O. Evans has written:

'Observer's Book of the Sea and Seashore'

'Jules Verne and his work'

'Benefactors of the World'

'Flags of the World'

'Engineers of the world'

'The junior outline of history' -- subject(s): Juvenile literature, World history

'The observer's book of flags' -- subject(s): Flags

'Rocks, minerals & gemstones' -- subject(s): Mineralogy, Petrology

'Let's visit Iceland' -- subject(s): Juvenile literature

'Cigarette cards and how to collect them'

'Exploring the earth'

'Inventors of the world' -- subject(s): Inventors, Juvenile literature