Leo Rogin has written:
'The introduction of farm machinery in its relation to the productivity of labor in the agriculture of the United States during the nineteenth century' -- subject(s): Wheat, Agricultural machinery, Agricultural laborers, Agriculture
'The introduction of farm machinery' -- subject(s): Wheat, Agricultural machinery, Agricultural laborers, Agriculture
Leo H. Sommer has written: 'Stereochemistry, mechanism and silicon'
Leo H. Baetsle has written: 'Notes on the physical chemistry of ion exchange'
Leo Francis Carty has written: 'A study of the contributions to sociology of Christopher H. Dawson'
Malsen. H. van has written: 'Groen van Prinsterer en Heinrich Leo' -- subject(s): Accessible book
H. H. Donaldson has written: 'The rat'
H. Marsman has written: '\\'
Will H. Moore has written: '\\'
H H. Anderson has written: 'Centrifugal pumps'
H. H. Arnold has written: 'Global mission'
H. H. Kendler has written: 'Basic psychology'
H. H. Siegumfeldt has written: 'Kaj Munk'
H. H. Haig has written: 'The first genocide'