Preciosa 1849 passenger list

How do I get a complete passenger list of the Preciosa that sailed on June 2, 1849 from Drammen, Norway and arrived in New York on July 26, 1849? Some of my relatives were on that ship: Pedersen, Amund age 6; Pedersen, Hans age 5; Pederson, Bertel age 3 and Pedersen, Anne age 3 mo. Also on board was Morten Olsen Lodengaard age 21.