Scientific American h [microform] 

 - New York :  Scientific American Inc.,  1859- 
 - 76 microfiches ;  11 x 15cm. 
 - Monthly 
<br/><br/> v.226,no.1-6(Jan-June)1972 - v.227,no.1-6(July-Dec)1972  - v.228,no.1-6(Jan-June)1973 - v.229,no1-6(Jul-Dec)1973 
<br/><br/><label>ISSN: </label>0036-8733 
 = Scientific American h [microform]