© 2018 World Book, Inc. All rights reserved.
Courtesy of the National Portrait Gallery, London
Tax Free Property Sale, 2008, John Holcroft, (b.20th C./British), Computer graphics . Fine Art. Britannica ImageQuest, Encyclopædia Britannica, 25 May 2016.
quest.eb.com/search/107_3356967/1/107_3356967/cite. Accessed 2 May 2018.
Computer generated mathematical saddle. Photograph. Britannica ImageQuest, Encyclopædia Britannica, 25 May 2016.
quest.eb.com/search/132_1188577/1/132_1188577/cite. Accessed 2 May 2018.
A Stack Of Coins Beside A Piggy Bank. Photograph. Britannica ImageQuest, Encyclopædia Britannica, 25 May 2016.
quest.eb.com/search/312_675512/1/312_675512/cite. Accessed 2 May 2018.
JOSEPH ALOIS SCHUMPETER - (1883-1950). Austrian economist.. Fine Art. Britannica ImageQuest, Encyclopædia Britannica, 25 May 2016.
quest.eb.com/search/140_1647391/1/140_1647391/cite. Accessed 2 May 2018.