Gordon, H. The River Motor Boat Boys on the Colorado; Or, The Clue in the Rocks.
Cita Chicago (17th ed.)Gordon, Harry. The River Motor Boat Boys on the Colorado; Or, The Clue in the Rocks.
Cita MLA (9th ed.)Gordon, Harry. The River Motor Boat Boys on the Colorado; Or, The Clue in the Rocks.
Atenció: Aquestes cites poden no estar 100% correctes.