Singh, B. D. Environmental management: A geographical study of Sultanpur district. Deep and Deep Pubs. 1992.
Chicago-Zitierstil (17. Ausg.)Singh, Beena Devi. Environmental Management: A Geographical Study of Sultanpur District. Deep and Deep Pubs. 1992.
MLA-Zitierstil (9. Ausg.)Singh, Beena Devi. Environmental Management: A Geographical Study of Sultanpur District. Deep and Deep Pubs. 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.