History. A catalogue of doctoral dissertations, 1990-1991.

MLA

History. A Catalogue of Doctoral Dissertations, 1990-1991. Godstone, 1991.

APA

(1991). History. A catalogue of doctoral dissertations, 1990-1991. Godstone.

Chicago

History. A Catalogue of Doctoral Dissertations, 1990-1991. Godstone, 1991.