APA način citiranja

Roman, S. M., & Rota, G. (1975). The Umbral Calculus. California: The University of California.

Čikaški stil citiranja

Roman, Steven M., i Gian-carlo Rota. The Umbral Calculus. California: The University of California, 1975.

MLA način citiranja

Roman, Steven M., i Gian-carlo Rota. The Umbral Calculus. California: The University of California, 1975.