[8] Contributo, pp. 55-56.

[9] Primi Saggi, p. 163.

[10] Contributo, p. 58.

[11] Contributo, p. 59-60.

[12] Contributo, p. 60.

[13] Contributo, p. 61.

[14] Contributo, p. 63.

[III. HISTORY AND ECONOMICS]