APA

Sven Nordqvist, . (2000). Armer Petterson. : Oettinger.

Chicago

Sven Nordqvist, . 2000. Armer Petterson. : Oettinger.

Harvard

Sven Nordqvist, . (2000). Armer Petterson. : Oettinger.

MLA

Sven Nordqvist, . Armer Petterson. : Oettinger. 2000.