Karol III, Elżbieta, & Ward, J. (1991). HRH the prince of Wales watercolours. Little, Brown and Company.
Citazione stile Chigago Style (17a edizione)Karol III, Elżbieta, e John Ward. HRH the Prince of Wales Watercolours. Boston [etc.]: Little, Brown and Company, 1991.
Citatione MLA (9a ed.)Karol III, et al. HRH the Prince of Wales Watercolours. Little, Brown and Company, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.