Hawking, S. (1993). Black holes and baby universes and other essays. Bantam Books.
Chicagoスタイル(17版)引用形式Hawking, Stephen. Black Holes and Baby Universes and Other Essays. New York, N.Y: Bantam Books, 1993.
MLA(9版)引用形式Hawking, Stephen. Black Holes and Baby Universes and Other Essays. Bantam Books, 1993.
警告: この引用は必ずしも正確ではありません.