Albert Blankert. Ferdinand Bol (1616–1680): Rembrandt's Pupil. Doornspijk, The Netherlands, 1982, p. 180, no. R 168, titles the picture "Old Man Studying a Botanical Book," and gives the artist as David Bailly, crediting the attribution to S. J. Gudlaugsson's undated note in the photographic file of the Rijksbureau voor Kunsthistorische Documentatie, The Hague.
J[osua]. Bruyn. Letter to Walter Liedtke. September 1, 1983, writes that he is certain it is not by Bailly, and also rejects attributions to Jacob Gerritsz. Cuyp, Jacob Willemsz. Delff II, Hendrick van Vliet, and Bol; does believe it to be a work of the Delft school.
Walter Liedtke in The Jack and Belle Linsky Collection in The Metropolitan Museum of Art. New York, 1984, pp. 84–86, no. 29, ill., supports the attribution to Bailly.
Walter Liedtke. Dutch Paintings in The Metropolitan Museum of Art. New York, 2007, vol. 1, pp. 15–18, no. 3, colorpl. 3, as Attributed to David Bailly; states that he "still considers Bailly's authorship likely".
Esmée Quodbach. "The Age of Rembrandt: Dutch Paintings in The Metropolitan Museum of Art." Metropolitan Museum of Art Bulletin 65 (Summer 2007), pp. 62, 66, fig. 75 (color, MMA Linsky gallery photograph).