Lego 6074 - an instruction of alt. model B building - YouTube
BrickLink - Set 6074-1 : LEGO Black Falcon's Fortress [Castle:Black Falcons] - BrickLink Reference Catalog
LEGO 6074 Black Falcon's Fortress Set Parts Inventory and Instructions - LEGO Reference Guide
LEGO 6074: Black Falcon's Fortress | Brickset: LEGO set guide and database
LEGO 6074 Black Falcon's Fortress Set Parts Inventory and Instructions - LEGO Reference Guide
Black Falcon's Fortress, 6074 (Lego Black Falcon's Fortress 6074 complete with instructions.) collected in Lego Castle Sets by Anthony Pietrak - Collected It!