Specification for performance requirements for hardness of, and for air flow through, infants' pillows :  metric units / 
British Standards Institution. 
 - 7 pages :  illustrations ;  21cm. 
 - British standard ;  BS 4578 : 1970 .
 - British standard ;  BS 4578 : 1970 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Infants--Care.<br/>Infants' supplies--Great Britain.