Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
629.83 V174 57070 57071 57873
Van Valkenburgh Nooger Basic synchros and servomechanisms London Technical Press 1960 2pts. vols 1 and 2 bound in one * Closed-loop control systems Servomechanisms