Disquisiciones filológicas sobre la lengua guaraní /

Mode of access: Internet.

Ortografía guaraní sobre la base de la ortografía internacional adoptada por los congresos de zoología y botánica,

"Tirada aparte ampliada de la monografía ʻPlantas usuales, introducción, nomenclatura y diccionario de los géneros latino-guaraníʼ de la obra ʻDescripción física y económica del Paraguayʼ en curso de publicación."

OASIS : parameter estimation system for aquifer restoration models : user's manual version 2.0 /

Mode of access: Internet.

Stratigraphy of the unsaturated zone and uppermost part of the Snake River Plain aquifer at Test Area North, Idaho National Engineering Laboratory, Idaho /

Mode of access: Internet.

Simulation of runoff and recharge and estimation of constituent loads in runoff, Edwards aquifer recharge zone (outcrop) and catchment area, Bexar County, Texas, 1997-2000 /

Includes bibliographical references (p. 31).

Sulfur isotopic composition and water chemistry in water from the high plains aquifer, Oklahoma panhandle and southwestern Kansas /

Mode of access: Internet.

Digital-simulation and projection of head changes in the Potomac-Raritan-Magothy aquifer system, coastal plain, New Jersey /

"May 1980."

Origins and distribution of saline ground waters in the Floridan aquifer in coastal southwest Florida /

Bibliography: p. 32-34.

Preliminary delineation and description of the regional aquifers of Tennessee : the East Tennessee aquifer system /

Shipping list no.: 86-911-P.

A digital-computer model of the Big Sioux aquifer in Minnehaha County, South Dakota /

Mode of access: Internet.

Plan of study for the northern Atlantic coastal plain regional aquifer system analysis /

"April 1980."

Three dimensional digital-computer model of the Ferron sandstone aquifer near Emery, Utah /

"October 1980."

Results of a reconnaissance water-quality sampling program of the Ogallala aquifer in Colorado, Kansas, Nebraska, Oklahoma, South Dakota, and Texas /

Bibliography: p. 7.

Appraisal of the water resources of the Big Sioux aquifer, Brookings, Deuel, and Hamlin Counties, South Dakota /

Mode of access: Internet.

Drinking-water quality and variations in water levels in the fractured crystalline-rock aquifer, west-central Jefferson County, Colorado /

Mode of access: Internet.