APA-ийн эшлэл(7 дахь хэвлэлт)

Pepper, T. A. (1997). Singularities: Extremes of theory in the twentieth century. Cambridge University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Pepper, Thomas Adam. Singularities: Extremes of Theory in the Twentieth Century. Cambridge ; New York: Cambridge University Press, 1997.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Pepper, Thomas Adam. Singularities: Extremes of Theory in the Twentieth Century. Cambridge University Press, 1997.