@book{howson_curriculum_1981,
	address = {Cambridge ; New York},
	title = {Curriculum development in mathematics},
	isbn = {978-0-521-23767-3},
	language = {en},
	publisher = {Cambridge University Press},
	author = {Howson, A. G. and Keitel, Christine and Kilpatrick, Jeremy},
	year = {1981},
	keywords = {Curriculum planning, History, Mathematics, Study and teaching History},
}

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