Estilo APA

Greenall, Simon, Garton - Sprenger, Judy. (1987). Horizons : Student's book / Simon Greenall , Judy Garton - Sprenger (1). London: Heinemann.

Estilo Chicago

Greenall, Simon, Garton - Sprenger, Judy. Horizons : Student's book / Simon Greenall , Judy Garton - Sprenger. 1 London: Heinemann, 1987. IES DyT 9-001 Gral. San Martin.

Estilo MLA

Greenall, Simon, Garton - Sprenger, Judy. Horizons : Student's book / Simon Greenall , Judy Garton - Sprenger. 1 London: Heinemann, 1987. IES DyT 9-001 Gral. San Martin.

Estilo Turabian

Greenall, Simon, Garton - Sprenger, Judy. Horizons : Student's book / Simon Greenall , Judy Garton - Sprenger. 1 London: Heinemann, 1987. IES DyT 9-001 Gral. San Martin.