Estilo APA
Soars, Liz, Soars, John, Wheeldon, Sylvia. (c2005).
American headway 4 : worbook .
E. U. A.:
Oxford University Press.
Estilo Chicago
Soars, Liz, Soars, John, Wheeldon, Sylvia.
American headway 4 : worbook.
E. U. A.:
Oxford University Press,
c2005.
Texto.
Estilo MLA
Soars, Liz, Soars, John, Wheeldon, Sylvia.
American headway 4 : worbook.
E. U. A.:
Oxford University Press,
c2005.
Texto.
Estilo Turabian
Soars, Liz, Soars, John, Wheeldon, Sylvia.
American headway 4 : worbook.
E. U. A.:
Oxford University Press,
c2005.
Texto.