The observer's book of geology /
Evans, I. O.
The observer's book of geology / by I.O. Evans ; foreword by Prof. H.L. Hawkins. - London : Frederick Warne, [19-?]. - 272 p. : ill. - The observer's pocket series .
Geology--Great Britain.
Geology.
The observer's book of geology / by I.O. Evans ; foreword by Prof. H.L. Hawkins. - London : Frederick Warne, [19-?]. - 272 p. : ill. - The observer's pocket series .
Geology--Great Britain.
Geology.