@book{53125,
	title = {The New Encyclopaedia Britannica in 30 Volumes :},
	publisher = {Encyclopaedia Britannica,},
	year = {1979.},
	address = {Chicago :},
	edition = {15th ed.},
	note = {Macropaedia (volumes 1 to 19): Knowledge in Depth. -- Volume 6: Earth - Everglades.}
}