APA

Herge, . (2002). The Castafiore Emerald. London: Egmot.

Chicago

Herge, . 2002. The Castafiore Emerald. London: Egmot.

Harvard

Herge, . (2002). The Castafiore Emerald. London: Egmot.

MLA

Herge, . The Castafiore Emerald. London: Egmot. 2002.