@book{1368,
	author = {Das, Braja M. and Sivakugan, N.},
	title = {Principles of Foundation Engineering },
	publisher = {Cengage,},
	year = {2016.},
	address = {Australia :},
	edition = {9th ed.},
	url = {https://books.google.com.pk/books?id=ak-GswEACAAJ&dq=9781337705028&hl=en&sa=X&redir_esc=y}
}