Produce, produce --- that is the whole thing!
-- Jean-Baptiste Say
A Treatise on Political Economy
http://www.econlib.org/library/Say/sayT.html
The methodological lessons of Say’s Introduction to his Treatise
by Petter Sandstad
Presented at HES 2010 Annual Conference, Syracuse University
http://hes2010.syr.edu/websub/webtree/review/download.php?subId=246
The Scope and Method of Political Economy in the Early Nineteenth Century: From D. Stewart and J.B. Say to J. R. McCulloch
by Shin Kubo
http://sydney.edu.au/business/conferences/hetsa2010/papers#Kubo
Particularly interesting in this paper is the argument he makes for Stewart deriving his method from that of Say.
Texts in french:
http://www.dauphine.fr/CRJBS/oeuvrescompletes.html
(CENTRE DE RECHERCHE JEAN BAPTISTE SAY, University Paris Dauphine)
Say wrote several articles, encyclopaedic entries and book-reviews for the Revue Encyclopedique. The entire journal is available in PDF here:
http://www.archive.org/search.php?query=Revue%20encyclop%C3%A9dique%20AN...
The major articles are the following:
Editors: Petter Sandstad, Per Arne Karlsen