HEWETT, C. (of Messrs. Dunn and Hewett.)
CHOCOLATE AND COCOA, GROWTH AND PREPARATION.
pp. 88.
London 1862
COMPAGNIE COLONIALE.
CHOCOLATE: ITS CHARACTER AND HISTORY.
pp. 37.
Paris 1868
HOLM, J.
COCOA AND ITS MANUFACTURE.
Rivers, London.
SINCLAIR, W.J.