Catalogues Raisonnés

• MacDonald, Margaret F., James McNeill Whistler. Drawings, Pastels and Watercolours. A Catalogue Raisonné, New Haven and London, 1995 (cat. no. 590) as 'The Mouth of the River'.

Catalogues 1855-1905

• Possibly 'Notes' - 'Harmonies' - 'Nocturnes', Messrs Dowdeswell, London, 1884 or 'Notes' - 'Harmonies' - 'Nocturnes', Second Series, Messrs Dowdeswell, London, 1886 (cat. no. unknown).

Books on Whistler

• Glazer, Lee, Emily Jacobson, Blythe McCarthy, and Katherine Roeder, Whistler in Watercolor: Lovely Little Games, New Haven and London, 2019.

Catalogues 1906-Present

• Curry, David Park, James McNeill Whistler at the Freer Gallery of Art, New York and London, 1984, p. 181, pl. 100.

Websites

• Freer Gallery of Art website at https://asia.si.edu/object/F1902.171a-b.
• Whistler in Watercolour, Freer|Sackler, Washington, 2019, website.