Robert M. Gelman, a CIA officer who specialized in linguistics and economics, died Sept. 23 at his home in Bethesda. He was 92. The cause was pneumonia and complications from Parkinson's disease, said his wife, Shari Gelman. Dr. Gelman joined the CIA after World War II and retired 23 years ago. Robert Milton Gelman was born in Passaic, N.J. He studied languages and graduated from New York University just before World War II. During the war he was an Army intelligence officer and taught Japanese language and culture, serving in the China-Burma-India theater of operations. In the late 1950s he received a master's degree and a doctorate in economics at Catholic University. Dr. Gelman swam and played tennis and baseball until he was in his 80s. Survivors include his wife of 66 years Shari Einfrank Gelman of Bethesda; two children, Ona Bunce of Bethesda and Morris Gelman of Falls Church; and two grandchildren.