APA (7th ed.) Citation

Roberts, J. L. (1982). Introduction to geological maps and structures / John L. Roberts. Pergamon.

Chicago Style (17th ed.) Citation

Roberts, John L. Introduction to Geological Maps and Structures / John L. Roberts. Oxford: Pergamon, 1982.

MLA (9th ed.) Citation

Roberts, John L. Introduction to Geological Maps and Structures / John L. Roberts. Pergamon, 1982.

Warning: These citations may not always be 100% accurate.