found: Pappenheimer, A.M. Letters from Etretat, 1989.
found: BGN France(Etretat, ppl 49°42ʹN 0°12ʹE; Seine Maritime)
found: Dict. nat. des communes(Etretat, Seine Maritime, ar. Le Havre)
found: LC manual auth. cd.(hdg.: Étretat, France)
found: Wikipedia, November 10, 2019(Étretat is a commune in the Seine-Maritime department in Normandy in north-western France; 49°43ʹN 0°13ʹE)
found: GEOnet, November 10, 2019(Étretat, populated place, France, Normandie, 49°42ʹ24ʺN, 000°12ʹ19ʺE (49.706691, .205234))