Cita APA (7a ed.)
Page, B. (2011). Downward pressure on e-book prices squeezes publisher revenue as print falls. Bookseller, 5480, 4.
Cita Chicago Style (17a ed.)
Page, Benedicte. "Downward Pressure on E-book Prices Squeezes Publisher Revenue as Print Falls." Bookseller 5480 (2011): 4.
Cita MLA (9a ed.)
Page, Benedicte. "Downward Pressure on E-book Prices Squeezes Publisher Revenue as Print Falls." Bookseller, 5480, 2011, p. 4.
Precaución: Estas citas no son 100% exactas.