Cita APA (7a ed.)

Gass, T., Frison, E., Kolshus, K., & Sackville-Hamilton, R. (1996). Report of a working group on forages: Fifth meeting 31march - 2 apr 1995 Hissar, Bulgaria. [editor no identificado].

Cita Chicago Style (17a ed.)

Gass, T., E. Frison, K. Kolshus, y R. Sackville-Hamilton. Report of a Working Group on Forages: Fifth Meeting 31march - 2 Apr 1995 Hissar, Bulgaria. [Lugar de publicación no identificado]: [editor no identificado], 1996.

Cita MLA (8a ed.)

Gass, T., et al. Report of a Working Group on Forages: Fifth Meeting 31march - 2 Apr 1995 Hissar, Bulgaria. [editor no identificado], 1996.