APA (7. basım) Alıntı

Agricultural Resources & Environmental Indicators. United States Department of Agriculture.

Chicago Style (17. basım) Atıf

Agricultural Resources & Environmental Indicators. United States Department of Agriculture.

MLA (9th ed.) Atıf

Agricultural Resources & Environmental Indicators. United States Department of Agriculture.

Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..