Cita APA (7th ed.)
(1973). A History of discovery and exploration. Aldus Books/Jupiter Books.
Cita Chicago (17th ed.)
A History of Discovery and Exploration. London: Aldus Books/Jupiter Books, 1973.
Cita MLA (9th ed.)
A History of Discovery and Exploration. Aldus Books/Jupiter Books, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.