APA-ийн эшлэл(7 дахь хэвлэлт)

Hughes, N. F. (1989). Fossile as information: New recording and stratal correlation techniques. C.U.Pr.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hughes, Norman F. Fossile as Information: New Recording and Stratal Correlation Techniques. Cambridge: C.U.Pr, 1989.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hughes, Norman F. Fossile as Information: New Recording and Stratal Correlation Techniques. C.U.Pr, 1989.