Paper  bibtex   

@article{noauthor_montessori_1952-1,
	title = {Montessori in {Holland}},
	url = {http://www.worldcat.org/oclc/856587155},
	language = {en},
	number = {1934},
	journal = {Times Educational Supplement (London)},
	month = may,
	year = {1952},
	pages = {447}
}