00921nam0 2200277 450 00002482320090323122257.020090323d1969----km-y0itay50------baengGBa-------001yyCaldwell's screw tug designJeffrey E. Wood, A. Caldwell2nd ed.TiptreeHutchinson educational1969XIV, 281 p.ill.24 cm<<The >>Hutchinson library of ships and shipping2001<<The >>Hutchinson library of ships and shippingCaldwell's screw tug design43597623.8221Architettura navaleWood,Jeffrey E.633302Caldwell,A.633303ITUNIPARTHENOPE20090323RICAUNIMARC000024823S 623.82/14S D 478DSA2009Caldwell's screw tug design43597UNIPARTHENOPE