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Mariner's celestial navigation | Bok | Mag. q527(02) W Crawford, William P. / - San Francisco : Miller Freeman, 1969. - xv, 137 s. - Språk: Engelsk | Crawford, William P. | 1969 |
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Mariner's weather | Bok | 551.5 C Crawford, William P. / - New York : W.W. Norton & Company, 1992. - x, 299 s. - Språk: Engelsk | Crawford, William P. | 1992 |