APA-referens

Powell, R. E., & Shah, S. M. (1972). Summability theory and its applications.

Chicago-stil citat

Powell, R E., och S M. Shah. Summability Theory and Its Applications. Van Nostrand Reinhold Co., London, 1972.

MLA-referens

Powell, R E., och S M. Shah. Summability Theory and Its Applications. 1972.