Παραπομπή σε μορφή APA (7η εκδ.)

United States. Department of Agriculture. (1956). Abstracts of recent published material on soil and water conservation. United States Department of Agriculture.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Department of Agriculture. Abstracts of Recent Published Material on Soil and Water Conservation. Washington, D.C.: United States Department of Agriculture, 1956.

Παραπομπή σε μορφή MLA (9th εκδ.)

United States. Department of Agriculture. Abstracts of Recent Published Material on Soil and Water Conservation. United States Department of Agriculture, 1956.