Friedemann, P., & Wang, E. (1981). Current left and labour press 1978-1981. Bochum: IALHI.
Chicago Style aipamenaFriedemann, Peter, and Edgar Wang. Current Left and Labour Press 1978-1981. Bochum: IALHI, 1981.
MLA aipamenaFriedemann, Peter, and Edgar Wang. Current Left and Labour Press 1978-1981. Bochum: IALHI, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.