Upton Sinclair/ Grover Gardner (NRT)
(3)
Upton Sinclair/ Maura Spiegel (INT)
(2)
Upton Sinclair/ Michael Lackey (NRT)
(2)
Sparknotes (Cor)/ Upton Sinclair
(1)
Upton Sinclair (EDT)/ Jack London (INT)/ Chris Hedges (INT)
(1)
Upton Sinclair Eugene Brieux
(1)
Upton Sinclair/ Anna Maria Hong (CON)/ Cynthia Brantley Johnson (CON)
(1)
Upton Sinclair/ Barry Sears (AFT)/ Alicia Mischa Renfroe (INT)
(1)
Upton Sinclair/ Bill Savage (INT)
(1)
Upton Sinclair/ Carl Jensen (INT)
(1)
Upton Sinclair/ Christopher Phelps
(1)
Upton Sinclair/ Christopher Phelps/ Harriet Beecher Stowe/ Stephen Railton
(1)
Upton Sinclair/ Earl Lee (FRW)/ Kathleen De Grave (INT)
(1)
Upton Sinclair/ Eugene Brieux
(1)
Upton Sinclair/ Georg Brandes
(1)