Joh. Isacii Pontani Discussionum historicarum libri duo. : quibus præcipuè quatenus & quodnam mare liberum vel non liberum clausumque accipiendum dispicitur expenditurque. ; Accedit, præter alia, Casparis Varrerii Lusitani De Ophyra regione & ad eam navigatione commentarius (1637)
Pontanus, Johannes Isacius, 1571-1639 · Hardervici Gelrorum, : excudebat Nicolaus à Wieringen gymnasij typographus. · leaf 2
Navigation -- History · Maritime law · Ophir
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