MLA

Wengraf, Herner. Quarterly Catalogue of Acquisitions Paintings of the Eighteenth Century (london, Old Masters Gallery Ltd.). London: Old Masters Galleries Ltd., 1972.

APA

Wengraf, H. (1972). Quarterly Catalogue of Acquisitions Paintings of the Eighteenth Century (London, Old Masters Gallery Ltd.). London: Old Masters Galleries Ltd.

Chicago

Wengraf, Herner Quarterly Catalogue of Acquisitions Paintings of the Eighteenth Century (london, Old Masters Gallery Ltd.). London: Old Masters Galleries Ltd., 1972.