Cita APA (7a ed.)

Pennsylvania Academy of Science. (1926). Proceedings of the Pennsylvania Academy of Science. Pennsylvania Academy of Science.

Cita Chicago Style (17a ed.)

Pennsylvania Academy of Science. Proceedings of the Pennsylvania Academy of Science. [Harrisburg]: Pennsylvania Academy of Science, 1926.

Cita MLA (9a ed.)

Pennsylvania Academy of Science. Proceedings of the Pennsylvania Academy of Science. Pennsylvania Academy of Science, 1926.