Morgan, S., & Okerstrom, D. (1992). The endangered earth: Readings for writers. Allyn and Bacon.
Chicagoスタイル(17版)引用形式Morgan, Sarah, , Dennis Okerstrom. The Endangered Earth: Readings for Writers. Boston, MA: Allyn and Bacon, 1992.
MLA(9版)引用形式Morgan, Sarah, , Dennis Okerstrom. The Endangered Earth: Readings for Writers. Allyn and Bacon, 1992.
警告: この引用は必ずしも正確ではありません.