APA

Muir(Erskine D), . (1939). The New Groundwork Of British History. : .

Chicago

Muir(Erskine D), . 1939. The New Groundwork Of British History. : .

Harvard

Muir(Erskine D), . (1939). The New Groundwork Of British History. : .

MLA

Muir(Erskine D), . The New Groundwork Of British History. : . 1939.