APA引文

Richardso, C. H. (1954). An introduction to the calculus of finite differences. Van Nostrand.

Chicago Style (17th ed.) Citation

Richardso, Clarence Hudson. An Introduction to the Calculus of Finite Differences. New York: Van Nostrand, 1954.

MLA引文

Richardso, Clarence Hudson. An Introduction to the Calculus of Finite Differences. Van Nostrand, 1954.