BN Cat. gén.
Thomas Clarkson : the friend of slaves / Earl Leslie Griggs. - Ann Arbor : University
of Michigan Press, 1938. - 1 vol. (210 p.) : ill. ; 23 cm
Throughts on the necessity of improving the condition of the slaves in the British
colonies, with a view to their ultimate emancipation... / by T. Clarkson, 1995 [document
électronique : reprod. de l'éd. de 1823]