APA

Harper Collins Publiser, . (1993). Margaret Thatcher. new york: harper collins publishers.

Chicago

Harper Collins Publiser, . 1993. Margaret Thatcher. new york: harper collins publishers.

Harvard

Harper Collins Publiser, . (1993). Margaret Thatcher. new york: harper collins publishers.

MLA

Harper Collins Publiser, . Margaret Thatcher. new york: harper collins publishers. 1993.