(1990). Agronomy abstracts: 1990 annual meetings. Texas: American Society of Agronomy.
Trích dẫn kiểu ChicagoAgronomy Abstracts: 1990 Annual Meetings. Texas: American Society of Agronomy, 1990.
ציטוט MLAAgronomy Abstracts: 1990 Annual Meetings. Texas: American Society of Agronomy, 1990.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.