Hammond, L. (1997). How to draw portraits in colored pencil from photographs. North Light Books.
Цитирование в стиле Чикаго (17-е изд.)Hammond, Lee. How to Draw Portraits in Colored Pencil from Photographs. Cincinnati, Ohio: North Light Books, 1997.
Цитирование MLA (9-е изд.)Hammond, Lee. How to Draw Portraits in Colored Pencil from Photographs. North Light Books, 1997.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.