@book{6887,
	author = {Turnbull, H. W.},
	title = {Theory of equations,},
	publisher = {Oliver and Boyd,},
	year = {1939.},
	address = {Edinburgh,},
	note = {"This book is founded on the lecture course given in the University of St. Andrews to students reading for an ordinary degree in mathematics and to first-year honours students."--Pref.}
}