Mereutéa, I. Andreescu, 1972: portada (Andreescu) página 5, etc. (Ion Andreescu, 1850-1882; Rumanian painter)

Bénézit, 1976 (Andreesco (Ion) b. & d. Bucarest)

LC en OCLC, 12-13-88 (punto de acceso: Andreescu, Ion, 1850-1882)

Bogdan, R. Expozitia comemorativa Ioan Andreescu, 1850-1882, 1982.

Union List of Artists Names Online, sitio web, 12 septiembre 2016: (Andreescu, Ioan (Romanian painter and draftsman, 1850-1882) Names: Andreescu, Ioan; Ioan Andreescu; Andreescu, Ion; Andreesco, Ian; Andreesco, Ion; Andreescu, Jean; Andreescu, Ian; Ion Andreescu) http://www.getty.edu/vow/ULANFullDisplay?find=Andreescu%2C+Ion%2C&role=&nation=&prev_page=1&subjectid=500011952

RKD artists, sitio web, 12 septiembre 2016: (Ioan Andreescu, male / Romanian painter, draftsman. Name variations: Andreesco, Ioan. Born: Boekarest, 1850-02-27; Deceased: Boekarest, 1882-11-03) https://rkd.nl/explore/artists/1740