Salinger, Margaretta M. (Summer 1968). "Windows Open to Nature"(PDF). The Metropolitan Museum of Art Bulletin. 27 (1). The Metropolitan Museum of Art: 1–4. doi:10.2307/3258395. JSTOR3258395. Archived(PDF) from the original on 4 March 2016. Retrieved 18 April 2011.
jstor.org
Salinger, Margaretta M. (Summer 1968). "Windows Open to Nature"(PDF). The Metropolitan Museum of Art Bulletin. 27 (1). The Metropolitan Museum of Art: 1–4. doi:10.2307/3258395. JSTOR3258395. Archived(PDF) from the original on 4 March 2016. Retrieved 18 April 2011.
metmuseum.org
Salinger, Margaretta M. (Summer 1968). "Windows Open to Nature"(PDF). The Metropolitan Museum of Art Bulletin. 27 (1). The Metropolitan Museum of Art: 1–4. doi:10.2307/3258395. JSTOR3258395. Archived(PDF) from the original on 4 March 2016. Retrieved 18 April 2011.
Salinger, Margaretta M. (Summer 1968). "Windows Open to Nature"(PDF). The Metropolitan Museum of Art Bulletin. 27 (1). The Metropolitan Museum of Art: 1–4. doi:10.2307/3258395. JSTOR3258395. Archived(PDF) from the original on 4 March 2016. Retrieved 18 April 2011.
Tompkins Lewis, Mary (9 February 2011). "New Lessons on an Old Hand". The Wall Street Journal. Archived from the original on 30 December 2018. Retrieved 18 April 2011.
Tompkins Lewis, Mary (9 February 2011). "New Lessons on an Old Hand". The Wall Street Journal. Archived from the original on 30 December 2018. Retrieved 18 April 2011.