Introduction to research on plant diseases; a guide to the principles and

by Riker, A. J.
St. Louis, J. S. Swift co., 1936

Introduction to research on plant diseases : a guide to the principles and practice for studying various plant-disease problems /

by Riker, A. J.
St. Louis : John S. Swift, 1936

THE USE OF RADIOACTIVE ISOTOPES TO ASCERTAIN THE ROLE OF ROOT-GRAFTING IN THE TRANSLOCATION OF WATER, NUTRIENTS, AND DISEASE-PRODUCING ORGANISMS AMONG FOREST TREES.

by Beckman, C. H., Beckman, C. H., Kuntz, J. E., Riker, A. J.
[Place of publication not identified] : [publisher not identified], 1953