The soils of Cuba /

"A cooperative project between the Bureau of Soils, U.S. Department of Agriculture and the Tropical Plant Research Foundation, published with the aid of the Cuba Sugar Club, Havanna."

Assessing the relationship between transportation infrastructure and productivity : summary of current research : part of a highways and economic productivity agenda.

"August 1992."

Principles of plant pathology; a text and laboratory manual.

Reproduced from typewritten copy.

Diseases of vegetable crops,

"Photo-lithoprint reproduction of author's manuscript."

Soviet publications in plant pathology and closely related fields; titles published from 1925 through early 1953 and available in the Library of the U.S. Department of Agriculture.

Mode of access: Internet.

Luther Burbank, his methods and discoveries and their practical application; prepared from his original field notes covering more than 100,000 experiments made during forty years devoted to plant improvement,

Frontispiece, illustrations, etc., are mounted.

Plant life, considered with special reference to form and function /

Reference books: p. 413-414.

Plant anatomy from the standpoint of the development and functions of the tissues, and handbook of microtechnic,

Mode of access: Internet.

Insect pests and plant diseases in the vegetable and fruit garden /

Mode of access: Internet.

Plants, people, and paleoecology : biotic communities and aboriginal plant usage in Illinois /

Includes index.

The Insect Pest and Plant Disease Act.

Mode of access: Internet.

Measurement of U.S. agricultural productivity : a review of current statistics and proposals for change.

Issued Feb. 1980.

Insects associated with wild plants in Europe and the Middle East : biological control of weeds surveys /

Includes index.

Productivity and costs.

Title from caption.

Productivity and costs.

Title varies slightly.