ON VARIATIONS IN THE MAGNETIC DECLINATION AT BLOEMFONTEIN
Rudge, W A Douglas
Article
1913
Transactions of the Royal Society of South Africa
3
357--363
BioStor
English
Cape Town, Royal Society of South Africa,
BioStor: https://biostor.org/reference/167279 DOI: https://doi.org/10.1080/00359191309519703
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