Economic problems of agriculture in industrial societies proceedings of a Conference held by the International Economic Association / edited by Ugo Papi and Charles Nunn .-- London [etc.] : Macmillan , 1969
.--XXIX, 671 p. 23 cm. .-- ( International Economic Association Symposia ).
AGRICULTURA
ASPECTOS ECONOMICOS
PAISES DESARROLLADOS
Nunn, Charles F.
Papi, Giuseppe Ugo