Cita APA (7a ed.)

Whittington, H. B. (1962). A monograph of the ordovician trilobites of the Bala area, Merioneth. Paleontographycal Society.

Cita Chicago Style (17a ed.)

Whittington, Harry B. A Monograph of the Ordovician Trilobites of the Bala Area, Merioneth. London: Paleontographycal Society, 1962.

Cita MLA (8a ed.)

Whittington, Harry B. A Monograph of the Ordovician Trilobites of the Bala Area, Merioneth. Paleontographycal Society, 1962.