Growing healthy seedlings : identification and management of pests in Northwest forest nurseries /

"R6-PNW-019-90."

Farm drainage in the United States : history, status, and prospects.

"December 1987"--P. i.

Memoir of the life and character of the Rev. Samuel Bacon, A. M., late an officer of marines in the United States' service:

Mode of access: Internet.

Fifth report of the United States Entomological commission, being a revised and enlarged edition of Bulletin no. 7, on insects injurious to forest and shade trees.

Also issued as House misc. doc. 269, 51st Cong., 1st sess. [serial no. 2800]

Hydrologic data for experimental agricultural watersheds in the United States /

Description based on: 1971.

Stem sawflies of economic importance in grain crops in the United States,

"Literature cited": p. 37-50.

Aggregate stability of soils from Western United States and Canada; measurement procedure, correlations with soil constituents

Cover title.

The Crop and livestock reporting service of the United States /

Caption title.

Forest trees and forest regions of the United States /

Originally issued Jan. 1936.

Life history, host plants, and migrations of the beet leafhopper in the western United States,

"Literature cited": p. 119-122.

Physiologic races of Puccinia recondita f. sp. tritici in the United States from 1926 through 1960

Bibliography: p. 18.

Alfalfa germplasm in the United States : genetic vulnerability, use, improvement, and maintenance /

Bibliography: p. 20-21.

USDAHL-74 revised model of watershed hydrology : a United States contribution to the international hydrological decade /

Literature cited: p. 29-30.

The Salt problem in irrigation agriculture : research at the United States Regional Salinity Laboratory.

Cover title.

Opportunities for career service in the United States Department of Agriculture /

"Issued November 1948."