TY  - BOOK
AU  - Barnard,Joseph Edwin
AU  - Welch,Frank Victor
TI  - Practical photo-micrography / 
PY  - 1936///]
CY  - London : 
PB  - E. Arnold , 
KW  - Photomicrography
N1  -  First published 1911... Thrid edition 1936;  Erratum slip attached to plate xix
ER  -