(1896). Dr. Nikola / by Guy Boothby ..
Cita Chicago (17th ed.)Dr. Nikola / by Guy Boothby .. 1896.
Cita MLA (9th ed.)Dr. Nikola / by Guy Boothby .. 1896.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)