APA aipamena

Coombs, P. -., Evans, M., & Hardy, P. E. (2012). Pastel painting: Step-by-step.

Chicago Style aipamena

Coombs, Peter -2007, Margaret Evans, and Paul E. Hardy. Pastel Painting: Step-by-step. 2012.

MLA aipamena

Coombs, Peter -2007, et al. Pastel Painting: Step-by-step. 2012.