by JOHN J. VALESKA
Year of Publication 22.06.1971

by JOHN J. VALESKA
Year of Publication 01.04.1969

by DONALD N. SPENCER, JOHN J. VALESKA, EDSON L. KUMMER
Year of Publication 19.01.1971

by DONALD N. SPENCER, JOHN J. VALESKA, EDSON L. KUMMER
Year of Publication 25.11.1969

by DONALD N. SPENCER, JOHN J. VALESKA, EDSON L. KUMMER
Year of Publication 19.08.1969

by BRUCE A. HOPKINS, WALTER P. LA FORCE, JOHN J. VALESKA
Year of Publication 09.11.1971

by J. VALESKA,JOHN, E. RICK,MICHAEL
Year of Publication 16.05.1974

by VALESKA, JOHN J., ROCHESTER, N.Y. (V.ST.A.)
Year of Publication 18.10.1973