APA citiranje

(1990). Agronomy abstracts: 1990 annual meetings. Texas: American Society of Agronomy.

Trích dẫn kiểu Chicago

Agronomy Abstracts: 1990 Annual Meetings. Texas: American Society of Agronomy, 1990.

MLA citiranje

Agronomy Abstracts: 1990 Annual Meetings. Texas: American Society of Agronomy, 1990.

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