Tratado elemental de procedimientos en el ramo civil, conforme al código puesto en vigor en el Distrito federal el 15 de setiembre de 1872, escrito por el Lic.

Mode of access: Internet.

Gramática elemental (teórico-práctica) de la lengua castellana.

"Obra aprobada por la Junta Directiva de la Instrucción Pública."

Tratado elemental de pedagogía,

Mode of access: Internet.

Compendio elemental de historia del Paraguay.

First published in Madrid, 1896.

Regulatory impact analysis of emission standards for elemental phosphorus plants /

"EPA 520/1-84-025."

The equilibrium between carbon oxysulfide, carbon monoxide and sulfur ...

Thesis t.-p. pasted over the cover of the issue reprinted from the Journal of the American chemical society, vol. XXXVII, no. 9, September, 1915, which has title: The equilibrium between carbon oxysulfide, carbon monoxide and sulfur, by Gilbert N. Lewis and William N. Lacey.

National performance audit program : 1980 proficiency surveys for sulfur dioxide, nitrogen dioxide, carbon monoxide, sulfate, nitrate, lead and high volume flow /

Mode of access: Internet.

U.S. Atomic Energy Commission reports on elemental fluorine /

"TID-3507 Chemistry."

Multimedia assessment of pollution potentials of non-sulfur chemical pupling technology /

Mode of access: Internet.

Toxicological profile for sulfur trioxide and sulfuric acid : draft /

Mode of access: Internet.

Estimation of U.S. coal reserves by coal type : heat and sulfur content.

"DOE/EIA-0529."

Gypsum and other sulfur materials for soil conditioning /

Mode of access: Internet.

Feasibility of primary copper smelter weak sulfur dioxide stream control /

Mode of access: Internet.

Development of a process for producing an ashless, low-sulfur fuel from coal.

Prepared for the Office of Coal Research, Dept. of the Interior...by the Pittsburg & Midway Coal Mining Co., Kansas City, Mo.

Sulfur and its importance in food production, conclusions and recommendations of the Special Subcommittee on Fertilizer and Farm Machinery of the Committee on Agriculture, House of Representatives, based on hearings before the subcommittee February 20-23, 1951.

Mode of access: Internet.