APA

Roberts (Gordon W); Sedra (Adel S), . (1997). Spice. Ed 2. : .

Chicago

Roberts (Gordon W); Sedra (Adel S), . 1997. Spice. Ed 2. : .

Harvard

Roberts (Gordon W); Sedra (Adel S), . (1997). Spice. Ed 2. : .

MLA

Roberts (Gordon W); Sedra (Adel S), . Spice. Ed 2. : . 1997.