1. Observations on East-West economic relations: U.S.S.R. and Poland : a trip report, November-December 1972 Author/Creator: Humphrey, Hubert H. 1911-1978, (Hubert Horatio), author Publication/Creation: Washington, DC : For sale by the Superintendent of Documents, U.S. Government Printing Office Resource Type: Book Access & Availability: Loading
2. Observations on Soviet and Polish agriculture, November-December 1972 : a trip report Author/Creator: Humphrey, Hubert H. 1911-1978, (Hubert Horatio), author Publication/Creation: [Getzville, New York] : William S. Hein & Company, [2017] Resource Type: Book Access & Availability: Loading
3. On the right to emigrate for religious reasons : the case of 10,000 Soviet Evangelical Christians Publication/Creation: Washington : [U.S. Government Printing Office], [1979] Resource Type: Book Access & Availability: Loading