Book  (Apr 1993)  Page(s) 472.  
 
Princess Michiko Floribunda, coppery orange, yellow eye, 1966, 'Circus' x 'Spartan'; Dickson, A. Description.

Book  (Feb 1993)  Page(s) 243.  Includes photo(s).
 
Princess Michiko Cluster-flowered floribunda. Parentage: 'Spartan' x 'Circus'. England 1966. Description and cultivation... large clusters of slightly fragrant, semi-double flowers in a copper-orange colour, which redden as they mature... susceptible to black spot...

Magazine  (Mar 1967)  Page(s) 1. trimester, p. 15.  
 
Les Concours de Roses en Europe en 1966 .. .PARIS-BAGATELLE, 7 juin 1966 Rosiers à grosses fleurs et Floribunda ...
2' certificat : « Princess Michiko ». Obt. Diekson (E.-U.)

Book  (1967)  Page(s) 174.  
 
S. Brundrett & Sons, Victoria. (advertisement) 
Having been appointed Sole Australian Agents for Alex Dickson & Sons..... For our 1967 season, Mr. Dickson is also releasing two excellent new Floribunda varieties. Princess Michiko  Brilliant orange blooms produced freely In large trusses on a vigorous plant of average height.