Costs of Butterfat Sampling and Testing Programs (Classic Reprint)

Sampling and Examination of Mine Gases and Natural Gas (Classic Reprint)

Notes on Sampling and Testing (Classic Reprint)

Selected Readings in International Trade and Tariff Problems (Classic Reprint)

Problems in Eugenics (Classic Reprint)

Mine Sampling and Valuing (Classic Reprint)

Selected Films for American History and Problems (Classic Reprint)

Sampling and Analyzing Flue Gases (Classic Reprint)