APA Style

Ragan, D, M. (1968). Structural Geology An Introduction to Geometrical Techniques Second Edition (Ed.2, Cet.4). New York: John Wiley & Sons.

MLA Style

Ragan, Donal, M.. "Structural Geology An Introduction to Geometrical Techniques Second Edition". Ed.2, Cet.4 New York: John Wiley & Sons, 1968. Text.