福格尔 & 岳卓. (2008). 假如爱犬会说话: If your dog could talk…. 科学普及出版社.
Chicago Style aipamena福格尔 and 岳卓. 假如爱犬会说话: If Your Dog Could Talk…. 科学普及出版社, 2008.
MLA aipamena福格尔 and 岳卓. 假如爱犬会说话: If Your Dog Could Talk…. 科学普及出版社, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.