APA ציטוט

Bluman, G. W., & Bluman, G. W. K. (1989). Symmetries and differential equations. Springer.

Chicago Edition Citation

Bluman, George W., and George W.; Kumei Bluman. Symmetries and Differential Equations. New York: Springer, 1989.

ציטוט MLA

Bluman, George W., and George W.; Kumei Bluman. Symmetries and Differential Equations. Springer, 1989.