@book{7330,
	author = {Kramer, Jurgen.},
	title = {Intervertebral disk diseases: causes, diagnosis, treatment and prophylaxis},
	publisher = {George theime verlag stuttgart,},
	year = {c1990.},
	address = {New York:},
	edition = {2nd ed.},
	url = {https://books.google.com.pk/books?id=Ho-2L7NALvEC&printsec=frontcover&dq=Intervertebral+disk+diseases:+causes,+diagnosis,+treatment+and+prophylaxis&hl=en&sa=X&redir_esc=y#v=onepage&q=Intervertebral%20disk%20diseases%3A%20causes%2C%20diagnosis%2C%20treatment%20and%20prophylaxis&f=false}
}