Cita APA (7a ed.)

Roberts, J. L. (1982). Introduction to geological maps and structires. Pergamon Press.

Cita Chicago Style (17a ed.)

Roberts, John Leonard. Introduction to Geological Maps and Structires. Oxford: Pergamon Press, 1982.

Cita MLA (8a ed.)

Roberts, John Leonard. Introduction to Geological Maps and Structires. Pergamon Press, 1982.