APA (7th ed.) Citation

Penhallow, D. P. (1909). Penhallow, David Pearce Jul. 27, 1909. Zenodo.

Chicago Style (17th ed.) Citation

Penhallow, D. P. Penhallow, David Pearce Jul. 27, 1909. Zenodo, 1909.

MLA (9th ed.) Citation

Penhallow, D. P. Penhallow, David Pearce Jul. 27, 1909. Zenodo, 1909.

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