|  |  | Captain George Peacock : the pioneer commander of Pacific steamers | Analytt | 386(091)(05) M 34 Duncan, Roland E. / I: The Mariner's mirror.  - Årg. 66 Nr. 1, 1980 - Cambridge. - 17-29
 | Duncan, Roland E. |  | 
				|  |  | Shipping and shipping policy in Latin America | Bok | Små. q656.6(8) T Tresselt, Dag /  - Bergen, 1968. - 11 s. (Norges Handelshøyskole)
 | Tresselt, Dag | 1968 |