Cita APA

Urbanek, A., & Towe, K. M. Ultrastructural Studies on Graptolites, 2: The Periderm and Its Derivatives in the Graptoloidea / by Adam Urbanek and Kenneth M. Towe. Washington : Smithsonian Institution Press.

Citación estilo Chicago

Urbanek, Adam, y Kenneth M. Towe. Ultrastructural Studies On Graptolites, 2: The Periderm and Its Derivatives in the Graptoloidea / By Adam Urbanek and Kenneth M. Towe. Washington : Smithsonian Institution Press.

Cita MLA

Urbanek, Adam, y Kenneth M. Towe. Ultrastructural Studies On Graptolites, 2: The Periderm and Its Derivatives in the Graptoloidea / By Adam Urbanek and Kenneth M. Towe. Washington : Smithsonian Institution Press.