George Wilber Hartwell has written:
'Plane fields of force whose trajectories are invariant under a projective group'
Charles Wilber Peters has written: 'Plan of work'
Leif Hartwell has written: 'Arbejdskonflikten 1973 og dens baggrund'
A. Wilber Stevens has written: 'Stories Southwest' -- subject(s): American literature
R. M Hartwell has written: ''A revolution in the character and destiny of British wool.''
Hartwell Stuart Shippey has written: 'Homo sap' -- subject(s): Anarchists, Biography
Henry Hartwell Swearingen has written: 'Family register of Gerret Van Sweringen and descendants'
Clare Hartwell has written: 'Warburton church and village' 'Lancashire' -- subject(s): Architecture, Guidebooks
Samuel Wilber Norton has written: 'Chicago traction' -- subject(s): Street-railroads
Clifford C. Wilber has written: 'THE STORY OF CENTRAL SQUARE, KEENE, NEW HAMPSHIRE'
Ernest Clark Hartwell has written: 'The teaching of history' -- subject(s): Study and teaching, History
Charles S. Hartwell has written: 'The junior high school' -- subject(s): Accessible book
Thomas Hartwell has written: 'Hints on the establishment and regulation of Sunday schools' -- subject(s): Administration, Sunday schools