ISHS International Asparagus Symposium Ferrara (Italy), International Society for Horticultural Science. Working Group Asparagus, Eucarpia, Research Institute for Vegetable Crops (Milan (Italy)), ERSO. Ente per la ricerca, la sperimentazione e la divulgazione in ortoflorofrutticoltura e sementi, Centro operativo ortofrutticolo di Ferrara, . . . Schiavi, M. (1990). 7th International Asparagus Symposium: Ferrara, Italy, June 19-23, 1989. Secretary-General of ISHS.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)ISHS International Asparagus Symposium Ferrara (Italy), International Society for Horticultural Science. Working Group Asparagus, Eucarpia, Research Institute for Vegetable Crops (Milan (Italy)), la sperimentazione e la divulgazione in ortoflorofrutticoltura e sementi ERSO. Ente per la ricerca, Centro operativo ortofrutticolo di Ferrara, A. Falavigna, và Massimo Schiavi. 7th International Asparagus Symposium: Ferrara, Italy, June 19-23, 1989. Wageningen, Netherlands: Secretary-General of ISHS, 1990.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)ISHS International Asparagus Symposium Ferrara (Italy), et al. 7th International Asparagus Symposium: Ferrara, Italy, June 19-23, 1989. Secretary-General of ISHS, 1990.