Grey, V. (1959). The first book of astronomy. Franklin Watts.
Chicagoスタイル(17版)引用形式Grey, Vivian. The First Book of Astronomy. New York: Franklin Watts, 1959.
MLA(9版)引用形式Grey, Vivian. The First Book of Astronomy. Franklin Watts, 1959.
警告: この引用は必ずしも正確ではありません.