@book{4583,
	author = {Bhatnagar, Nitin},
	title = {Communicative english for engineers and professionals},
	publisher = {Pearson Education Publisher},
	year = {2015},
	address = {New Delhi},
	url = {https://libgen.is/book/index.php?md5=D49485C2947DC92BD89E4598745A316E}
}