APA (7e ed.) Bronvermelding

Wood, D., & Wood, A. (1996). Piggies. Harcourt.

Chicago (17e ed.) Bronvermelding

Wood, Don, en Audrey Wood. Piggies. San Diego, CA: Harcourt, 1996.

MLA (8e ed.) Bronvermelding

Wood, Don, en Audrey Wood. Piggies. Harcourt, 1996.