J. L. Thompson

• Comparaison du coût de la puissance des tracteurs
• Comparison of the power costs of tractors
• Patterns of growth and development in the genus Homo
• Studying society
• Access to environmental information
• Agricultural machinery costs
• All Right for Some!
• An atmospheric tritium and carbon-14 monitoring system
• Con Job
• Evaluation of moderately high-pressure water-jet assist applied to single drag bit tools
• Frais d'utilisation des machines agricoles
• Made His for a Debt