Variational methods in economics/
[By] G. Hadley [and] M. C. Kemp.
- Amsterdam ; New York: North-Holland, American Elsevier, 1971.
- ix, 378 p.: 23 cm.
- Advanced textbooks in economics v. 1. .
"Sole distributors for the U.S.A.: American Elsevier, New York, N.Y."