00435cam a2200145 7i4500 0000016251 20171030090000.0 9781499306750 808.2/GER Gerson, Mark David Organic screenwriting : writing for film, naturally / by Mark David Gerson. MDG Media International, c2014. 216 pages ; 18 cm. 1000025903 Book Green Spot 1000025904 Book Red Spot