@book{4056,
	author = {Somayaji, Shan},
	title = {Civil engineering materials},
	publisher = {Pearson,},
	year = {2019.},
	address = {Uttar Pradesh :},
	edition = {2nd ed.},
	url = {https://www.amazon.com/Civil-Engineering-Materials-Shan-Somayaji/dp/013083906X}
}