STUDY ON BULBS FILAMENTS AND TUBES FOURTH FIVE YEAR PLAN  

 - KARACHI:      1969 
 - V.p.:  ill. picture.;  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Raw Materials<br/>Cost of Production
<br/><br/><label>Gov. Doc. Class. No.: </label>PK/IACP/Est