Plechanov, Struve, Tugan-Baranovskij, Lafargue, Jaurès, Labriola, Hyndman, De Leon.

MLA

Plechanov, Struve, Tugan-baranovskij, Lafargue, Jaurès, Labriola, Hyndman, De Leon. Milano: Feltrinelli, 1973.

APA

(1973). Plechanov, Struve, Tugan-Baranovskij, Lafargue, Jaurès, Labriola, Hyndman, De Leon. Milano: Feltrinelli.

Chicago

Plechanov, Struve, Tugan-Baranovskij, Lafargue, Jaurès, Labriola, Hyndman, De Leon. Milano: Feltrinelli, 1973.