Cita APA

Gemknow, H. Frederick engles: A biography. People's publishing house.

Citación estilo Chicago

Gemknow, Herinrich. Frederick Engles: A Biography. People's publishing house.

Cita MLA

Gemknow, Herinrich. Frederick Engles: A Biography. People's publishing house.

Warning: These citations may not always be 100% accurate.