Citazione APA

Fowler, O. S., Fowler, L. N., & Kirkham, S. (1837). Phrenology proved. Printed for the authors, by W. H. Coyler.

Stile di citazione Chicago

Fowler, O. S., L. N. Fowler, e Samuel Kirkham. Phrenology Proved. New-York: Printed for the authors, by W. H. Coyler, 1837.

Citazione MLA

Fowler, O. S., et al. Phrenology Proved. Printed for the authors, by W. H. Coyler, 1837.