Cita APA (7th ed.)
Demek, J. (1971). Geography of Czechoslovakia. Academia.
Cita Chicago (17th ed.)
Demek, Jaromír. Geography of Czechoslovakia. Prague: Academia, 1971.
Cita MLA (9th ed.)
Demek, Jaromír. Geography of Czechoslovakia. Academia, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.