APA-ийн эшлэл(7 дахь хэвлэлт)

Weinstein, L., & Adam, J. A. (2008). Guesstimation: Solving the world's problems on the back of a cocktail napkin. Princeton University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Weinstein, Lawrence, ба John A. Adam. Guesstimation: Solving the World's Problems on the Back of a Cocktail Napkin. Princeton, N.J.: Princeton University Press, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Weinstein, Lawrence, ба John A. Adam. Guesstimation: Solving the World's Problems on the Back of a Cocktail Napkin. Princeton University Press, 2008.