Trích dẫn APA

(1989). Hearing before the committee on science, space, and technology U.S. House of representatives. Washington: U. S. Government Office.

Trích dẫn kiểu Chicago

Hearing Before the Committee On Science, Space, and Technology U.S. House of Representatives. Washington: U. S. Government Office, 1989.

Trích dẫn MLA

Hearing Before the Committee On Science, Space, and Technology U.S. House of Representatives. Washington: U. S. Government Office, 1989.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.