Bell, K. (1990). Developing arguments: Strategies for reaching audiences. Wadsworth.
Chicago Style (17th ed.) ZitazioaBell, Kathleen. Developing Arguments: Strategies for Reaching Audiences. Belmont: Wadsworth, 1990.
MLA (9th ed.) ZitazioaBell, Kathleen. Developing Arguments: Strategies for Reaching Audiences. Wadsworth, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.