Cita APA (7th ed.)
Crawford, D. L. (1914). A Monograph of the Jumping Plantelice or Psyllidae of the New World.
Cita Chicago (17th ed.)
Crawford, David L. A Monograph of the Jumping Plantelice or Psyllidae of the New World. Washington, 1914.
Cita MLA (9th ed.)
Crawford, David L. A Monograph of the Jumping Plantelice or Psyllidae of the New World. 1914.
Atenció: Aquestes cites poden no estar 100% correctes.