Cita APA (7th ed.)

Péron, J. Y., & Welles, G. W. H. (1989). First international symposium on diversification of vegetable crops. ISHS.

Cita Chicago (17th ed.)

Péron, J. Y., i G. W. H. Welles. First International Symposium on Diversification of Vegetable Crops. Wageningen: ISHS, 1989.

Cita MLA (9th ed.)

Péron, J. Y., i G. W. H. Welles. First International Symposium on Diversification of Vegetable Crops. ISHS, 1989.