TY  - BOOK
AU  - Zijlstra,W.G.
AU  - Mook,G.A.
TI  - Medical reflection photometry / 
PY  - 1962///
CY  - Assen : 
PB  - Vangorcum Ltd., 
KW  - Photometry
N1  -  Includes bibliographical references
ER  -