@book{36160,
	author = {Gurugnanam, B.,},
	title = {Geographic information system /},
	publisher = {New India Publishing Agency,},
	year = {[2020]},
	address = {New Delhi, India :},
	url = {https://ebookcentral.proquest.com/lib/vajira-ebooks/detail.action?docID=6629709}
}