Παραπομπή APA

Herge. (1947). King ottokar's sceptre: The adventures of Tintin. Egmont.

Παραπομπή Chicago Style

Herge. King Ottokar's Sceptre: The Adventures of Tintin. London: Egmont, 1947.

Παραπομπή MLA

Herge. King Ottokar's Sceptre: The Adventures of Tintin. Egmont, 1947.