00450nam a22001697a 45000010005000000030003000050050017000080080041000250350018000660350017000840500021001011000019001222450038001412600054001793000026002336500021002596500UR20220428112355.0       1970    ck                  spa    a(janium) 6489  a(janium)6489 4aTJ214b.B84 197010aBulliet, L. J.10aServomecanismos /cL. J. Bulliet.0 aBogotá bFondo Educativo Interamericano c1970.  a276 p. bil. c24 cm. 0aServomecanismos.