Hammond, L. (1997). How to draw portraits in colored pencil from photographs. North Light Books.
Chicagoスタイル(17版)引用形式Hammond, Lee. How to Draw Portraits in Colored Pencil from Photographs. Cincinnati, Ohio: North Light Books, 1997.
MLA(9版)引用形式Hammond, Lee. How to Draw Portraits in Colored Pencil from Photographs. North Light Books, 1997.
警告: この引用は必ずしも正確ではありません.