The gravity hypothesis and transportation cost minimisation : A reply
| Year of publication: |
1974
|
|---|---|
| Authors: | Hartwick, J. M. |
| Published in: |
Regional and Urban Economics. - Elsevier, ISSN 0034-3331. - Vol. 4.1974, 1, p. 11-12
|
| Publisher: |
Elsevier |