Cita APA

International Board for Plant Genetic Resources. (1992). Report of a Working Group on Sunflower: Fourth meeting, held at Facoltà di Agraria, Università degli Studi di Pisa. Pisa, Italy 11-12 May 1991. IBPGR.

Citación estilo Chicago

International Board for Plant Genetic Resources. Report of a Working Group On Sunflower: Fourth Meeting, Held At Facoltà Di Agraria, Università Degli Studi Di Pisa. Pisa, Italy 11-12 May 1991. Rome: IBPGR, 1992.

Cita MLA

International Board for Plant Genetic Resources. Report of a Working Group On Sunflower: Fourth Meeting, Held At Facoltà Di Agraria, Università Degli Studi Di Pisa. Pisa, Italy 11-12 May 1991. Rome: IBPGR, 1992.