Trích dẫn APA

Asimov, I. (1989). Frontiers: New discoveries about man and his planet, outer space, and the universe. Truman Talley Books/Plume.

Trích dẫn kiểu Chicago

Asimov, Isaac. Frontiers: New Discoveries About Man and His Planet, Outer Space, and the Universe. New York: Truman Talley Books/Plume, 1989.

Trích dẫn MLA

Asimov, Isaac. Frontiers: New Discoveries About Man and His Planet, Outer Space, and the Universe. Truman Talley Books/Plume, 1989.

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