Citazione Stile APA (7a Edizione)

Ricke, H. (2008). Please Pet Me!?: Marta Klonowska's Extraordinary Qorld of Animals. Neues Glas.

Citazione stile Chigago Style (17a edizione)

Ricke, Helmut. "Please Pet Me!?: Marta Klonowska's Extraordinary Qorld of Animals." Neues Glas 2008.

Citatione MLA (8a ed.)

Ricke, Helmut. "Please Pet Me!?: Marta Klonowska's Extraordinary Qorld of Animals." Neues Glas, 2008.