APA-referens (7:e uppl.)

Horn, N. M. (1994). Viruses involved in chickpea stunt. s.n..

Chicago-referens (17:e uppl.)

Horn, Nico M. Viruses Involved in Chickpea Stunt. [Wageningen?: s.n., 1994.

MLA-referens (8:e uppl.)

Horn, Nico M. Viruses Involved in Chickpea Stunt. s.n., 1994.