Duckworth, Adam. The flash photography field guide : shaping the light to suit your photographs / Adam Duckworth. - Lewes, East Sussex : Ilex, 2012. - 192 p. : ill. (some col.) ; 16 cm. Includes index. ISBN: 9781907579912 (pbk.) 1907579915 (pbk.) Subjects--Topical Terms: Electronic flash photography. Dewey Class. No.: 778.72 / DUC 2012