APA Style

(Contribu, G, R, R, B, (, B, J, G, (, B, K, R. (1997). Sam's Snacks . : Cambridge University Press.

MLA Style

(Contribu, Gerald, Rose,, Richard, Brown, (Contribution, By),, Jean, Glasberg, (Contribution, By),, Kate, Ruttle. "Sam's Snacks". : Cambridge University Press, 1997. Text.