Citazione Stile APA (7a Edizione)

Picard, A. (2013). Essential techniques for pastel portraits. Northlight Media F+W Media.

Citazione stile Chigago Style (17a edizione)

Picard, Alain. Essential Techniques for Pastel Portraits. [Cincinnati, Ohio]: Northlight Media F+W Media, 2013.

Citatione MLA (9a ed.)

Picard, Alain. Essential Techniques for Pastel Portraits. Northlight Media F+W Media, 2013.