TY  - BOOK
AU  - Empringham,James
AU  - Empringham,Margareta
ED  - Health education society.
TI  - Invisible friends of the body,
AV  - RA436 .E5
PY  - 1944///
CY  - Los Angeles
PB  - Health education society
KW  - Hygiene
KW  - Pathogenic bacteria
KW  - Toxins and antitoxins
N1  - "Note by the editor" signed: Margareta Empringham
ER  -