David Octavius Hill and Robert Adamson : : Catalogue of their calotypes taken between 1843 and 1847 in the collection of the Scottish National Portrait Gallery.

MLA

Stevenson, Sara. David Octavius Hill and Robert Adamson : Catalogue of Their Calotypes Taken Between 1843 and 1847 In the Collection of the Scottish National Portrait Gallery. Edinburgh: National Galleries of Scotland, 1981.

APA

Stevenson, S. (1981). David Octavius Hill and Robert Adamson : Catalogue of their calotypes taken between 1843 and 1847 in the collection of the Scottish National Portrait Gallery. Edinburgh: National Galleries of Scotland.

Chicago

Stevenson, Sara David Octavius Hill and Robert Adamson: Catalogue of Their Calotypes Taken Between 1843 and 1847 In the Collection of the Scottish National Portrait Gallery. Edinburgh: National Galleries of Scotland, 1981.