APA (7th ed.) Citation

Nicolai, R. (2015). The premedieval origin of portolan charts: New geodetic evidence.

Chicago Style (17th ed.) Citation

Nicolai, Roel. The Premedieval Origin of Portolan Charts: New Geodetic Evidence. 2015.

MLA (9th ed.) Citation

Nicolai, Roel. The Premedieval Origin of Portolan Charts: New Geodetic Evidence. 2015.

Warning: These citations may not always be 100% accurate.