The character and effect of customer retrials in intertoll circuit operation ; Customer retrials in toll circuit operation

by R. I. Wilkinson and R. C. Radnik
Bok · Språk ikke angitt · 1968

Utgitt	[S.l.] : [s.n.] , [1968]
Omfang	25, [30] bl., bl. 9-14 : ill.
Emner	Automatisk telefon