Cita APA (7a ed.)

Lesley, J. P. A dictionary of the fossils of Pennsylvania and Neighboring states named in the reports and catalogues of the survey.

Cita Chicago Style (17a ed.)

Lesley, John Peter. A Dictionary of the Fossils of Pennsylvania and Neighboring States Named in the Reports and Catalogues of the Survey. Harrisburg.

Cita MLA (8a ed.)

Lesley, John Peter. A Dictionary of the Fossils of Pennsylvania and Neighboring States Named in the Reports and Catalogues of the Survey.