|  |  | A cartographical study of a Blunt chart | Analytt | 386(091)(05) Campbell, John F. / I: The American Neptune.  - 25, 1965. - s. 46-50
 | Campbell, John F. |  | 
				|  |  | Journal: an acount of the survey of the Eastern entrance to Long Island Sound in the year1817 | Analytt | q629.125(05) B Douglass, David Bates / I: The Boatman.  - Nr. 24, 1964 - London. - 280-293
 | Douglass, David Bates |  |