@book{6408,
	author = {Muntinga, Jan Everhardus,},
	title = {Het landschap Westerwolde,},
	publisher = {J.B. Wolters,},
	year = {1946.},
	address = {Groningen,},
	edition = {2. druk.},
	note = {Issued also as thesis, Landbouwhoogeschool, Wageningen.}
}