International directory of occupational safety and health services a nd institutions. 

 - Geneva,    [1969] 
 - v, 515 p. ;    24 cm. 
 - Occupational safety and health series ;    no.16 .
<br/><br/>  English, French, or Spanish. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Industrial safety -- Directories.<br/> Industrial hygiene -- Directories.