Joseph, K. (2004). Essentials of environmental studies. Pearson Education.
Chicago Style (17th ed.) CitationJoseph, Kurian. Essentials of Environmental Studies. Delhi: Pearson Education, 2004.
ציטוט MLAJoseph, Kurian. Essentials of Environmental Studies. Pearson Education, 2004.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.