APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc. (1993). Agricultural crop issues and policies. National Academy Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc. Agricultural Crop Issues and Policies. Washington, D.C.: National Academy Press, 1993.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc. Agricultural Crop Issues and Policies. National Academy Press, 1993.