Keynes, John Maynard
A treatise on money : the pure theory of money .-- London : MacMillan , 1971
.--v. lám. 23 cm. .-- ( The Collected writings ; 5 ).
A treatise on money : the pure theory of money .-- London : MacMillan , 1971
.--v. lám. 23 cm. .-- ( The Collected writings ; 5 ).