@book{32265,
	author = {Harbottle, Horace Reginald. and Hanman, Bernard Leslie George,},
	title = {The principles of telecommunications engineering ; vol. 1 /},
	publisher = {English Universities Press,},
	year = {1962.},
	series = {General technical series},
	address = {London :},
	note = {Includes indexes.}
}