(2006). Environmental issues: Essential primary sources. Detroit: Thomson Gale.
Trích dẫn kiểu ChicagoEnvironmental Issues: Essential Primary Sources. Detroit: Thomson Gale, 2006.
ציטוט MLAEnvironmental Issues: Essential Primary Sources. Detroit: Thomson Gale, 2006.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.