by VENTURA; JOHN J, RAVENSCROFT; PHILIP H
Year of Publication 20.05.1975

by VENTURA, JOHN J, RAVENSCROFT, PHILIP H
Year of Publication 24.12.1974

by JOHN J. VENTURA, PHILIP H. RAVENSCROFT
Year of Publication 01.06.1971

by RAVENSCROFT PHILIP H, DIEMAN EDGAR A
Year of Publication 20.11.1956

by GUTHRIE, ROGER T, LITTMAN, STANLEY, RAVENSCROFT, PHILIP H
Year of Publication 03.04.1979

by SUKMAN; EDWIN L, LITTMAN; STANLEY, HIRSHMAN; JUSTIN L, RAVENSCROFT; PHILIP H, GUTHRIE; ROGER T
Year of Publication 25.10.1977

by SUKMAN; EDWIN L, LITTMAN; STANLEY, HIRSHMAN; JUSTIN L, RAVENSCROFT; PHILIP H, GUTHRIE; ROGER T
Year of Publication 04.01.1977