Cita APA (7a ed.)

Berry, P. (1938). Tetrastichus Brevistigma Gahan, a pupal parasite of the Elm Leaf Beetle.

Cita Chicago Style (17a ed.)

Berry, P.A. Tetrastichus Brevistigma Gahan, a Pupal Parasite of the Elm Leaf Beetle. -USA, 1938.

Cita MLA (8a ed.)

Berry, P.A. Tetrastichus Brevistigma Gahan, a Pupal Parasite of the Elm Leaf Beetle. 1938.