Cita APA (7th ed.)

Wilson, E., & Petts, V. (1987). Oxford: Words and watercolours (1a. ed.). Shepheard-Walwyn.

Cita Chicago (17th ed.)

Wilson, Eliane, i Valerie Petts. Oxford: Words and Watercolours. 1a. ed. Londres: Shepheard-Walwyn, 1987.

Cita MLA (9th ed.)

Wilson, Eliane, i Valerie Petts. Oxford: Words and Watercolours. 1a. ed. Shepheard-Walwyn, 1987.