Thorpe, G. S. (2007). AP environmental science. Barron’s Educational Series.
シカゴスタイル引用形Thorpe, Gary S. AP Environmental Science. Barron’s Educational Series, 2007.
MLA引用形式Thorpe, Gary S. AP Environmental Science. Barron’s Educational Series, 2007.
警告: この引用は必ずしも正確ではありません.