APA引文

Polacco, P. (2011). Bun Bun Button. G. P. Putnam's Sons.

芝加哥风格引文

Polacco, Patricia. Bun Bun Button. New York: G. P. Putnam's Sons, 2011.

MLA引文

Polacco, Patricia. Bun Bun Button. G. P. Putnam's Sons, 2011.