APA aipamena

Tomlinson, S. (2007). Thinkwell's economics. [Austin, Tex.]: Thinkwell.

Chicago Style aipamena

Tomlinson, Steven. Thinkwell's Economics. [Austin, Tex.]: Thinkwell, 2007.

MLA aipamena

Tomlinson, Steven. Thinkwell's Economics. [Austin, Tex.]: Thinkwell, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.