Cita APA (7th ed.)

SMITH, W. (2004). BLUE HORIZON. PAN MACMILLAN.

Cita Chicago (17th ed.)

SMITH, WILBUR. BLUE HORIZON. LONDON: PAN MACMILLAN, 2004.

Cita MLA (9th ed.)

SMITH, WILBUR. BLUE HORIZON. PAN MACMILLAN, 2004.