Turtledove, H. (2002). Counting up, counting down (first.). Ballantine books.
Chicagoスタイル(17版)引用形式Turtledove, Harry. Counting Up, Counting Down. first. New York: Ballantine books, 2002.
MLA(9版)引用形式Turtledove, Harry. Counting Up, Counting Down. first. Ballantine books, 2002.
警告: この引用は必ずしも正確ではありません.