GRAY, A. S. The development of economic doctrine#An introductory survey#Alexander Gray. Longanns Northumberland Press.
Style de citation Chicago (17e éd.)GRAY, Alexander Sir. The Development of Economic Doctrine#An Introductory Survey#Alexander Gray. Longanns Northumberland Press.
Style de citation MLA (8e éd.)GRAY, Alexander Sir. The Development of Economic Doctrine#An Introductory Survey#Alexander Gray. Longanns Northumberland Press.
Attention : ces citations peuvent ne pas être correctes à 100%.