| I: | National Geographic Magazine. - Nr. 3, 1970 | | Tittel: | North for oil : Manhattan makes the historic Northwest Passage | | Ansvar: | Bern Keating | | Forfatter: | Keating, Bern  | | Materialtype: | Analytt | | Signatur: | Mag. tq91(05) N | | Utgitt: | Washington; D. C. | | Omfang: | 374-391 - Ill. | | Klassenummer: | 629.12(091) Manhattan / 629.124.791.2 / 998.9 | | Eier: | NSJØF |
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