Cita APA (7a ed.)
Frison, E. A., Ambrose, M., Begemann, F., & Knüpffer, H. (1993). Report of a Working Group on Barley: Fourth meeting, 10-12 May 1993, Gatersleben, Germany.
Cita Chicago Style (17a ed.)
Frison, Emile A., M. Ambrose, F. Begemann, y H. Knüpffer. Report of a Working Group on Barley: Fourth Meeting, 10-12 May 1993, Gatersleben, Germany. 1993.
Cita MLA (9a ed.)
Frison, Emile A., et al. Report of a Working Group on Barley: Fourth Meeting, 10-12 May 1993, Gatersleben, Germany. 1993.
Precaución: Estas citas no son 100% exactas.