Committee on Science, S. (1989). Hearings before the subcommittee on science, Research and Technology of the Committee on Science, Space, and Technology house of representatives: One hundredth congress. Washington: Superintendent o Documents, Congressional Sales Office.
Trích dẫn kiểu ChicagoCommittee on Science, Space. Hearings Before the Subcommittee On Science, Research and Technology of the Committee On Science, Space, and Technology House of Representatives: One Hundredth Congress. Washington: Superintendent o Documents, Congressional Sales Office, 1989.
Trích dẫn MLACommittee on Science, Space. Hearings Before the Subcommittee On Science, Research and Technology of the Committee On Science, Space, and Technology House of Representatives: One Hundredth Congress. Washington: Superintendent o Documents, Congressional Sales Office, 1989.