Gaya APA
Swanson, C, P. et al (1994).
Introduction to watercolour, gouache and tempera .
London:
London: Grange Books; 1994.
Gaya MLA
Swanson, Carl, P.. et al.
"Introduction to watercolour, gouache and tempera".
London:
London: Grange Books; 1994,
1994.
Text.