Hood, Peter.
Observing the heavens / Peter Hood. - Oxford : Oxford University Press, 1951. - 64 p. : ill. ; 23 cm. - Oxford visual series . - Oxford visual series. .
Astronomy.
522 / HOO
Observing the heavens / Peter Hood. - Oxford : Oxford University Press, 1951. - 64 p. : ill. ; 23 cm. - Oxford visual series . - Oxford visual series. .
Astronomy.
522 / HOO