Hood, Peter.
Observing the heavens / Peter Hood. - London : Oxford University Press, c 1951. - 64 p. : ill. ; 23 cm. - Oxford Visual Series. .
320 320
Astronomy.
520 / H761o
Observing the heavens / Peter Hood. - London : Oxford University Press, c 1951. - 64 p. : ill. ; 23 cm. - Oxford Visual Series. .
320 320
Astronomy.
520 / H761o