X-Rays simply explained: a handbook on Rantgen rays in theory and practice R.P. Howgrave Graham.

Howgrave-Graham, R.P.

X-Rays simply explained: a handbook on Rantgen rays in theory and practice R.P. Howgrave Graham. - London Percival Marshall [19...]. - 70p.: ill. 17cm - (The' Model engineer' series, no.19). .

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