Dietary levels of households in the North Central Region.

Cover title.

Dietary levels of households in the Northeast /

Cover title.

Dietary levels of households in the South /

Chiefly tables.

Dietary levels of households in the West /

Cover title.

Dietary levels of households in the United States seasons and year 1965-66.

Cover title.

Stark energy levels of symmetric top molecules.

At head of title: NBS Project 8440-11-84141.

Infirmities of per capita national income estimates when employed to compare levels of living between developed and retarded areas.

Mode of access: Internet.

Official methods of analysis of the Association of Official Analytical Chemists.

Supplemented by changes adopted at the annual meetings.

Methods of analysis for petrochemicals.

Mode of access: Internet.

Sets, sequences, and mappings: the basic concepts of analysis

Mode of access: Internet.

Determination of maximum permissible levels of selected chemicals that exert toxic effects on plants of economic importance in Illinois,

Bibliographical references.

Levels of PCBs and trace metals in Crab Orchard Lake sediment, benthos, zooplankton and fish /

"HWRIC Project number HWR 87027."

Methods of analysis adopted by the Association of official agricultural chemists, November 11, 12, and 14, 1898.

Mode of access: Internet.

Levels of living of U.S. farm families : selected annotated references, 1940-1955 /

Cover title.

Colorimetric methods of analysis; including some turbidimetric and nephelometric methods,

Supplementary volumes by Foster D. Snell and Cornelia T. Snell assisted by Chester Arthur Snell, have subtitle: Including photometric methods, or: Including photometric and fluorometric methods.