Practical measurement for improving efficiency :  acta IMEKO 1976 ; proceedings of the 7. Congress of the Internat. : Measurement Confed. held from the 10. to the 14. May 1976, London, U.K. :  Vol. 2 /  
general editor Gy. Striker ; International Measurement Confederation. 
 - Budapest  :   Akad. Kiadó,  1977-