APA (7th ed.) Citation

Maclure, W. (1966). Observations on the geology of the United States of America. Werner Fritsch.

Chicago Style (17th ed.) Citation

Maclure, William. Observations on the Geology of the United States of America. Munchen: Werner Fritsch, 1966.

MLA (9th ed.) Citation

Maclure, William. Observations on the Geology of the United States of America. Werner Fritsch, 1966.

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