Longstaff, L. W., & Brockwell, M. W. (1915). Extract from the Catalogue of the pictures in the collection of Lord St. Oswald at Nostell Priory by Maurice W. Brockwell: Published by Constable & Co Ltd 1915 : photographs by W F Gray.
Chicago-viite (17. p.)Longstaff, Leonard William, ja Maurice Walter Brockwell. Extract from the Catalogue of the Pictures in the Collection of Lord St. Oswald at Nostell Priory by Maurice W. Brockwell: Published by Constable & Co Ltd 1915 : Photographs by W F Gray. 1915.
MLA-viite (8. p.)Longstaff, Leonard William, ja Maurice Walter Brockwell. Extract from the Catalogue of the Pictures in the Collection of Lord St. Oswald at Nostell Priory by Maurice W. Brockwell: Published by Constable & Co Ltd 1915 : Photographs by W F Gray. 1915.