TY  - BOOK
AU  - Clark,Kathleen C.
AU  - Swallow,R.A.
AU  - Naylor,E.
TI  - Positioning in radiography / 
PY  - 1986///
CY  - London : 
PB  - Heinemann Medical Books, 
KW  - Technology, Radiology
N1  -  Includes index
ER  -