APA (7th ed.) Citation

Sweet, M. (2004). Source: An internet directory of modern interior design. Quadrille.

Chicago Style (17th ed.) Citation

Sweet, May. Source: An Internet Directory of Modern Interior Design. London: Quadrille, 2004.

MLA (9th ed.) Citation

Sweet, May. Source: An Internet Directory of Modern Interior Design. Quadrille, 2004.