APA Citation

Urbanek, A. 1., & Towe, K. M. (1974). Ultrastructural studies on graptofites. Washington: Smithsonian Institution Press.

Chicago Style Citation

Urbanek, Adam 1928-2014, and Kenneth M. Towe. Ultrastructural Studies On Graptofites. Washington: Smithsonian Institution Press, 1974.

MLA Citation

Urbanek, Adam 1928-2014, and Kenneth M. Towe. Ultrastructural Studies On Graptofites. Washington: Smithsonian Institution Press, 1974.

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