APA (7th ed.) Citation

Dunn, R., & Higgitt, R. (2014). Ships,clocks and stars: The quest for longitude. Harper Design.

Chicago Style (17th ed.) Citation

Dunn, Richard, and Rebekah Higgitt. Ships,clocks and Stars: The Quest for Longitude. New York: Harper Design, 2014.

MLA (9th ed.) Citation

Dunn, Richard, and Rebekah Higgitt. Ships,clocks and Stars: The Quest for Longitude. Harper Design, 2014.